No way am I restarting my Diamond, I have spent so much time on it and, somehow, got all my pokédex (minus latias but plus manaphy and phione) completed. Yet I still dont have a single lv100.
I have all 12 starters on my diamond anyways which are all ready to go to the the 5th gen (unless you can obtain them all, I only believe in trading unobtainable pokémon)
Hearing about Platinum makes me sad, I was gonna get platinum but next thing I new HG/SS came out so I was like, oh well.
If the 3rd game of Gen 5 is ZOMGAMAZINGWTFHOWRUSOAWESUM? then I may consider restarting diamond because I, for some reason, get a thrill out of destroying it all (I did it with sapphire)