Yeah, this is pretty revealing here.
How about last week when I walked into a comic shop that's been around since the 80's, (I went there as a kid) and I start browsing the back issue bins, he's got a ton of stock, and he says "None of the back issues are for sale, I have to re-price everything".
I had a Batman #442 in my hand, the first book I picked out before he noticed me looking, and wouldn't even let me buy it for the $8 sticker price.
They did you a favor. I would gladly sell you mutilple copies of Bats 442 for $8 each. I hope that owner went on Ebay and looked at the $.99 recent sales for that book and felt like a insufficiently_thoughtful_person.