I live in canada but am gonna be making a trip down to the USA to look at a couple WR450s. One is an 04, basically stock for 4 grand. The other is an 06 for 4500$. Both are essentially totally stock and very low hours. Getting the 06 would involve a LOT more driving which I am not really keen to do. Are there any significant differences in the 04 vs 06 model years? If they are the same hours is there really any reason to drive the extra 6 hours and pay the $500 more for the 06? Thanks for your help guys!