I have bought one whole collection and partial of three others. The one collection I bought was mainstream 90's stuff, containing lots of worthless comics, but it was so thorough, with variants and full runs and tie ins and everything, that it was easy for me to flip, and some of it was hard to let go but it was such a huge collection I knew I'd never read it all and it was difficult to store. I bought it for about $300, and I think it was about 5000 comics. All in what appeared to be unread NM condition.

One collection I cherry picked was at a thrift store. I pulled whatever I wanted for 50 cents a pop. 80's mainstream stuff but including plenty of non superhero titles, like Conan for example. I spent $80 for 160 comics, including a couple mags and some 90's ashcans. I left some good stuff behind, I don't know why. I guess I didn't want to be greedy. I didn't sell any of that stuff though.

The people who used to own the LCS in town had a yard sale, and they were unloading a chunk of their personal collection. Moderns, nothing special, but I got like every CSI comic ever. They said fill a short box with whatever you want for $25, so I took two.

And finally I found an 80's collection (and some earlier) of great titles, but it was in terrible condition. Wasn't sure I could sell any of it and I definitely wasn't planning on adding 4000 comics to my personal collection. I tried to cherry pick it and he wasn't having it so I left empty handed. I saw lots of mags (destroyed because of how they were stored, but would have been fine to read for the right price) and stuff like the Wolverine miniseries and DKR, but pages so brown and brittle you wouldn't believe it.

Still looking for the underground and Warren mag score though