I've checked out his site. I find the same issue of: of the chips I do know well, he's 2 to 3 times eBay pricing. My take is that it's an older fixed price list, helpfull, but no longer price athorative. While eBay may be the best market info on "common" chips, I value other people's opinions and guidance of the market for the not so everyday chips not often found on eBay.
What I'm gathering is, that for Colorado chips at least, the higher end chips have colapsed right along with the everyday chips.
Sad, but does present buying opportunities!