Quote Originally Posted by Captain Maxx Power View Post
it's common for players to simply have MP at 999, since there's very few reasons to have anything more than the base maximum, especially when you get can get hold of Three Stars.
Don't forget Yuna's and Lulu's "One MP Cost" weapons. XD

There's absolutely no reason at all to use magic 1000 times in one battle, and even if there were, you can just throw a Turbo Ether, use Lancet, or skip magic altogether, which isn't exactly risky in the end of the game anyway.