I'd kill the BAF model, except I think some characters wouldn't see the light of day otherwise. Juggernaut, Venom, and the eventual Gatecrasher are all popular enough to warrant single-carded releases. Is Titus (admittedly no great loss there) or The Void? I doubt it. The only other avenue is a multipack, and with all the budget going to a BAF-sized character, it's going to be an uninspired box set.
The thing is - I don't know how I feel about this argument. In 2025 three-quarters of the waves already aren't using the BAF concept (the SM Retro and Mini Comic waves and the Gameverse wave), and the other remaining wave cranked out a BAF of a semi-popular X-Men villain.
What did we get for BAFs across all of 2024? Zabu - that could have come in a deluxe or boxed set with Ka-Zar and/or Ka-Zar and Shanna. Void - questionable as a single release, but I'll get to that. And Blackheart - a fairly important B-list villain that has literally been single-carded in Marvel Legends' past.
So yeah, I'll give you literally one BAF in a year-and-a-half of releases that is questionable. But then I look at figures that have been single-carded (either deluxe or part of retro waves or whatever that don't have BAF parts associated with them) and I see some stuff way weirder or more obscure than Void. Guys like Kaine - who is literally only known and cared about by specifically hardcore fans of a particular part of mid-90s Spider-Man comics. Count Nefaria and pirate boots Whiplash?
And that being said - I still think there's a place for characters that would struggle on their own. We just have to be honest that 99% of those characters are team/story filler that would be best served slotted into multi-packs rather than as BAF figures anyway. Ch'od, for instance, easily could have been a headline get for a Starjammers pack. Instead we got a Ch'od BAF and still don't have most of the Starjammers, which is weird. To the 'uninspired boxed set' argument all I can say is a lot of single releases in BAF waves are pretty uninspired. For probably the same reason. So it's a lose-lose proposition.
Although I'd also argue we're probably past the point that any of this matters that much. ML has moved well past retail exposure being a concern. They can sell stuff like Void as deluxe figures directly to customers through Fan Channel or Pulse and not worry about how much curb appeal the character has and therefore they don't need any 'tricks' to sell him.
I've found that in recent years that I've started buying more diorama stuff as I got very tired of just having characters on a bookshelf. I'd love a build-a-diorama type concept, but it seems unlikely. A lot of the good diorama stuff out there is just far too expensive. In recent years I have bought more things like the NECA street scene and some stuff from places like Extreme Sets (usually only when big sales hit). I also watch for stuff that isn't necessarily designed for this purpose but still works like Aquarium decor, certain art and dollhouse accessories - although this is usually stuff bought dirt cheap at garage sales, bin stores, second hand stores or in clearance sales. I've experimented with making my own from various materials but I'm just not a very creative person in general so I'm not very good with that.
I'm one of those that has historically found limited value in the other types of accessories such as extra heads, hands, etc... or even weapons and effects. In most cases, 90% of these end up in a bin for me to never be seen or used again. The one exception is probably the alternate heads that I use a lot for kitbashing... but very specific character heads don't work great for that purpose for me.
I'd love to do more diorama stuff but I just don't think it's ever going to be realistic for the number of lines I collect and the amount of space I have. I used to do it a lot, especially with 1:18 stuff. There was a time when my G.I. Joe and Star Wars set-ups were pretty bitchin'. Not so much anymore.
As for parts - I always stress that the value in all the extra parts isn't that you have all these extra parts. It's that they represent built-in customizability to your action figure. An extra pair of hands or a different head can literally be the difference between 'I don't care about that figure' and 'I must have it.' Even if you'd buy it regardless, those options (even if you choose them once and never think about them again) can drastically impact how you display a figure. Even just as a small example - your '97 Wolverine and mine might look very different on the shelf because you're claws out and mask on, and I'm mask-off and claws out on one hand with his no-claws fist on his hip. Same package, but very different results on our shelves, even if neither of us ever change those options ever again.
This kind of thing is always tricky to me because the people best positioned to make that judgement - and the most motivated to get it right - are the ones with the actual sales information. Not to say they can't make mistakes, but they are the ones with the data to back up what works and what doesn't. The BAF must have some value them to get characters in a wave who they'd otherwise worry about selling - and for me that's a plus, because I love the z-listers.
I do think we're in the middle of an experimental period to sort out this exact issue of BAF vs deluxe - why was Lockjaw a deluxe 2-pack, but Zabu a BAF? Mindless Ones as BAFs, but an Outriders 2-pack (waaaay more preferable for an army builder). I like that they're playing around with all these different models, and if the BAF can go away without sacrificing the deep cuts I'm a-ok with it. They've already cut BAFs back considerably in the last year or two, so maybe you're onto something. Those few BAF waves also happen to have the character selection I'm most excited about, so I'm still nervous that one necessitates the other.
As you say - the people with the most motivation to follow the money have decided that three-quarters of the waves released so far this year not be BAF waves. That could say something. I also, to be fair, don't take it particularly seriously that these people are best positioned to make these judgements. Because we're talking about an industry that has been known to fall back to 'safe but wrong' over and over again (female figures don't sell, people love action features, etc). The problem is.. the data tells you what you want it to if you control what data you bother to collect.