Their feedback certainly looks impressive. Of the +200 this month alone, they only received one negative and that was from a Canadian customer complaining they had to pay tax... and they blamed the seller?

Those crazy eBayers.
I also suspect they aren't hiding anything, or else it would seem odd they even offered to send out samples, as most eBay sellers do not.
Do they allow you to make your own set of 1000 or do you have to stick with their distribution?
Personally, I think I'm going to hold on to mine for now. I may after all get transparent stickers for them so they wont be slippery, but eventually once tri-color ~10g chips come down to the ~$100 per 1,000 range I'll gladly replace mine.
BTW: Anyone have a suggestion for a company that makes reasonably priced 1/2" round transparent stickers?