I think you're wrong Xurts. You can still have a challenge at level 99, with certain foes. I've never reached level 99 in any game before, and just play it normally but I know that in XII that I'm 10-14 levels ahead of the place I'm supposed to be in. I'm just completely all the hard stuff now, and then going to carry the story later on. I'm just laying in wait to see if there will still be a creature/fiend/person who will still challenge me in the story. But i definitely know that there are optional bosses who would kick my ass!