New or Used ?

I am the age where I have decided to get off my Harley and take up trail riding. I think it would be much safer and I love being in the woods. Another factor is that I only live about 10 miles from the Hatfield -McCoy trail system and being retired I could go any time I wanted to go trail riding.
I have looked at ever brand atv and reviews and decided I could not go wrong with a Yamaha Grizzly. It would be used for trail riding or hunting. I think a 700 would have all the power I would ever need.. My question is about the prices for used ones that are several years old vs just getting a new one. It looks like a nice one several years old would only be a little less than getting a new one that I could take back if there was a problem with it. Thanks for any ideas you guys may have about new or used . For someone new to the atv hobby it is very hard to know if the price someone is asking for a used one is fair or more than it should be.