As I'm hoping to get a new bike in a couple of months, I've started checking out prices to get a general idea of what the markets like. Looking at the usual suspects in the 600 class, (gsxr600, R6, CBR600RR & zx6r), it seems the Yamaha's are a good $2,000 cheaper than the other 3 bikes. Whereas a zx6r 2004 goes for $11-13k, the 2004/2003 R6 seems to average $9k-10.5k. Is there any reason for this? Reliability issues with the R6? Flawed observation?