I don't think most PS1 games aged too well. A PS2 classic would be way more feasible. Yes, PS1 was THE RPG machine, but I think the PS2 has a much more well-rounded library that would attract more players.
Bet with Intrinsic:
The Switch will outsell 3DS (based on VGchartz numbers), according to me, while Intrinsic thinks the opposite will hold true. One month avatar control for the loser's avatar.