Since i own a 1981 model class c i thought id chime in here. It just depends. <img src="/images/boards/smilies/smile.gif" border="0" align="absmiddle"> that being said i will tell you why. They usually have little or no miles on them and as a consequence, mechanical things stop working, seals dry up, transmissions with clutch material in the pan are common. Plan on spending alot to fix one unless your a mechanic and can do alot of your own work. The fuel system often needs work, often they need electrical work. They are poorly insulated (as im finding out) and class c models sometimes leak badly in the cab over sleeping area. The ideal one to buy would be a unit that someone has brought back from the dead and done all the expensive stuff already. Bring someone with you, even if you have to pay them to look over it BEFORE you part with your hard earned cash. Just this mechanics opinion. Good luck on your search......