Recently bought (and have been watching)...
Wrong Turn 2 - I'd never heard of this one, but Walmart had it in their $5 bin, and it looked like a campy, low-budget horror movie, which is how I like them. As it turns out the movie wasn't ultra-low budget (the budget was about $4 million according to wiki), and wasn't that campy. It did have a few problems, like a silly plot issue that popped up about 10 minutes in, and they killed off the most likable character fairly quickly. Also, the characters were fairly cliche... the high-maintenance blonde actress, the masculine lesbian, the tempermental vegan, the black athlete, the immature skate boarder, etc. Having said that, I still thought it was a very good horror movie. It also had Henry Rollins in it, which I didn't realise until I started watching it--that was a nice suprise. The last horror film I took a chance on without knowing anything about was Cabin Fever 2--Ugh, what a mistake that was. This time was thankfully different.
Howard the Duck - Nostalgia probably played a part in buying this one (I was about 7 when this film came out, and I can remember watching it as a kid). And it was also only $5. Ok, yeah yeah, it's a terrible movie. I know. On the other hand, it does have a scene with a young Lea Thompson in her underwear.
Indiana Jones and the Temple of Doom - Really the only I.J. film I've liked. Again nostalgia plays a part, and it was cheap.
National Lampoon's European Vacation - Um... I'm not sure why I bought this exactly.