I know what you mean, but this is always a matter of supply and demand. If nobody would actually buy those CEs at that price, then people wouldn't bother trying to offer them for those prices either. It's like with concert tickets... (companies purchasing a lot of concert tickets to sell them at highly inflated prices). If people didn't actually buy them, then there wouldn't be such a lively market in those overpriced tickets. But while everyone knows this, people who are actually affected by it, often have the attitude "...but... but... I really, really want to have this!" (so they'll buy it anyway, even if the price is way too high) So personally, I think the blame is more on the side of the buyers, than the sellers.
I dunno, I suppose I find the whole thing rather parasitic: genuine collectors typically find themselves competing with professional scalpers whose "service" is to add some value in the form of a several hundred percent mark up before selling it on to the same people who wanted to buy it in the first place. I mean it's hardly new as problems go, it's as old as the hills when it comes to something whose value is automatically inflated by its scarcity, but it's rather sleazy.
In the case of CEs like this they really need to place limits of one per person as I've seen examples of people buying in bulk solely for the purpose of reselling on Ebay for an enormously inflated price, though of course they'll often wriggle around that by using multiple accounts; at least it makes it more difficult though.
Although I agree it could be argued that some blame falls on people for providing them with a market, I think most of the blame falls on the profiteers.
