I'm currently shopping for a bike. I'm looking at a difference of about $1k from an 01/02 426 to an 03/04 450. I'm wondering what the difference is between the 2 ( other then the engine size). If I go with a 426 and spend $1k less will I later be wishing I had spent more and picked up a 450? Or is there really not much of a difference? I'm just getting back into the sport. I've been off riding street track for a while. Going to be mostly trail/desert riding here in Nevada.