Buy comics? Sure, we do that.
People call us all the time and ask if we buy comics. We are always buying comics. The best thing to do is to bring your collection in to the shop. We know it's not the most convenient thing to do, but there are so many factors that go into valuing comics, you'll get a more honest and accurate answer from us if you just bring them in.
There is not a specific list of things we're looking for, but silver/bronze age books are a pretty good bet.
If you have a bunch of comics you just need to get rid of, we're always happy to give you a few bucks for a big box of low-value comics we can give out to kids and customers or add to our discount racks.