I was lucky when i purchased my 07 silverado classic. I was able to pick up the silverado 1500hd LT with 60,000 miles and really clean leather interior for 13,000$. I feel like i took a risk on it since i bought if from one of those small roadside dealers that operate for a few months and then go bust. The dealer also listed the truck on craiglist, and the truck and had been sitting there for almost six months. The truck is only 2wd, so i think that is one of the reasons no else wanted to buy it.
I looked at so many other trucks all around my area before i ended up buying my truck and they were all high millage, hard worked with dirty interiors and still 18,000-24,000$. One truck even had a melted dash, i asked the sales guy what the hell happened and he shrugged and just said its a chevy dash
I couldn't belive they would sell a truck like that at a dealer and still ask a small fortune for it.