Sounds like a douche to me.
There's a store around here that did that to me, too. I spent time in there nearly weekly buying and selling items to them. They got annoyed because I knew what I was talking about. The last time I tried to sell them a TurboGrafx-16, and they're all like, "I'll give you $10." So I'm tell them that at the cheapest, these things go for around $75 online in working condition. And I'm selling them games and accessories with it, too. They try the line, "Well, it's just not in demand." I too laughed in their faces, then I was told not to come back.