Well, most of the... actually, all of the games, excluding FES, -if...-, and numerous spin-offs of 3 (including an entire MMO, an entire version of the game with a customisable avatar, albeit dumbed down with a focus on real life social media, and a point and click adventure game... fuck you too Atlus) and the Summoner/Kuzunoha games (all of which take place in the same continuity) all of them are available for PSP/Vita, and you can hook those up to a TV, and... you can turn your PS3 on to give the vague experience of playing them on the PS3...?
You're right, they really should be on the PS3.