Yeah, there's a thrift store near me that I used to buy used records from (usually for 25 to 75 cents each), and then they started marking them at like $7 to $10 or more. They still had stacks and stacks of them last time I was there (no wonder), and I haven't been back since.

I did get a good deal many years ago at a flea market- a guy gave me a ROTJ Oral-B poster for free (it was actually a thin flat box that held the posters in the store, and one of the posters was pasted to the front). It was a poster I had never seen before, so I was thrilled. I love the artwork on it and it's still one of my favorite star wars promotional items.

Around the same time (mid-1980's) I found a Kenner Electronic Death Star/Laser Battle game in a bargain bin at Woolworths. The box was a bit beat up, but I think I paid $5 or $6 for it.