Let's see, I've owned the '99 400 and '00, '01, and '02 426 and each year they've gotten better (except for jetting problems on the '01). The '02 is a thoroughly refined four stroke race bike that can win OOTB with the right helmsman. One of the biggest assets is the reliability (yeah, I've heard of the various clutch, 4th gear, etc. problems) and most have had a great time roosting everyone in sight with only a few oil changes. I've also heard that the Honda 450 burns 25% of the oil every hour (no desert racing please!) and suffered more than a few tranny problems. Question: how many of you are ready to give up the reliability you have for a lighter, more powerful bike? Sure I'd love to have Yamaha lose a few pounds and have an auto decompressor but at what price? Do you really want to change the oil every ride, bend the subframe after a simple get-off, tweak the frame, or bend the swingarm easily? I don't! Better materials might do the trick (more $$) but just enjoy the bill when you have to replace something! For me, I'd rather carry a few extra pounds and have a more robust bike that can handle the next crash (cheaper for me to lose a few pounds than the bike). Still, I'd love the auto decompression system!