Well, without the help of cheats, I did complete the Kanto dex. It took a while, but I did it, and it made me feel good. however, that's about as far as I got as far as completing a dex. Right now, I've got 346 out of 493 on Platinum, and that would really make me happy if I caught them all, but also make me sad, realizing that I'd have to catch 150 more -_- Not that I wouldn't enjoy it though! Then I'd probably go into a cocky mood, resulting in another fan character :I
I do think Black and White have a special thingy available for catching them all though, and it looks pretty epic.