To be honest I do it just because it gives me something to work towards again and again and again and again, you get my point. If I didn't prestige I would probably get a little bored. You would be working towards absolutely nothing and it would then eliminate the whole point of having xp or rankings in the first place. But theoretically the more you play the game the better you should get lol, but I agree thats not always the case. I personally have never bothered to go past the 4th prestige, but I think this time I'm just going to go all the way for the hell of it. I guess my question to you is why the hell not? It's kinda like there is 750 rankings and you decide your going to stop at 300. But I don't blame you if you don't want to do it again.