Thanks for all the input. I'm going to really start pricing some of the above mentioned sleds. I did see a holdover 07 600 rmk 155 the other day for 7400 but I really hate to pay that much for a spare sled. Looks like dragon 700's are going for around 8K used. Think I saw a commercial the other day with sasquatch buying a holdover M6 for 7K. Keep the advice coming! What changes were made from 06-07-08 rmk 600's? According to polaris's website, the 08 gained weight over the 07.
06 was the "IQ" chassis, 07 and 08 are the "IQ RAW" chassis ...
The raw chassis doesn't have the rider select steering, and sheds a significant amount of weight and "bells and whistles" that nobody ever liked anyways. There is a cleanfire injection 600 HO for 07 and a carb'd model as well, I believe the 08 600 HO's are all fuel injected (correct me somone if I'm wrong on this) ..
The 08 has different spindles than the 06 and 07's do, the 07's being different even than the 06 if I remember right ... I am pretty sure the 07 and 08's come with the "Gripper" skis instead of the Sidehiller II's, which as much better skis than on the 06'....
I would say that if you can afford it, get an 07 or an 08 ... the 06's are still very good machines but they're a little heavier and not quite as responsive as the 07's are, and I'm assuming hte 08's are even better based on the 700 and 800 I rode ...