Also Ratchet's model alone would eat up about half of the game's memory.
I wouldn't go that far (not buying IG games), but I really hope for something over 30 FPS… Screw 1080p, just make this game run smooth!
I would.
That would mean IG has become just like other cash grabbing companies who'd rather have the game look good over being fun just because that would make it look better in trailers…
I'm not going to doubt that raising the resolution, and lowering the frame-rate is not an attempt to attract more wallets to the game… but I think that it has less to do with "fun" than you are suggesting.
I mean if they cut a boss fight, a bunch of arena challenges, or even an entire level in favor of making a couple of character models have more polygons, that would be pretty terrible. Or if they took out a bunch of missions, an narrowed a few worlds down so we had to "walk" through a pretty environment gallery that would certainly impact the fun-factor in an awfully negative way.
I don't care about frame-rate, or resolution. I've been playing console games all my life, and have never really been exposed to great graphics and frame-rate before (and when I was, I was too young to appreciate it). Sure if it runs at 1080p/60fps that's going to make it a bit better, but there are many more things I care more about. Like level design, character development, story presentation, dialogue quality, music, special effects, freedom to the player, having lots of weapons, lots of puzzels, and lots of levels, skill points, cheats, and customisation options.
(FYI: There is no way they could ever, EVER pull off what The Order is doing. Hell, The Order can barely pull it off themselves)