Long thread so I only skimmed but I don't think anyone brought up the fact that stats in old games capped at 255 because hexadecimal values only go up to that (er.. its either 255 or 256) and keeping values in that range saves space since its only 1 value the game has to store... or something like that. It wasn't any kind of conscious design decision by them at all besides the fact that they wanted to save space.

Anyways, the numbers we have now are fine. When we get into Disgaea stats is when we should start worrying.