For very limited CEs the online companies should operate a one per person policy. Why would anybody want to order multiples other than to make a profit or get one for a friend/relative . . .well let them order their own.
The CE would still sell out so there's no loss to the publisher or retailer . . .only the greedy cunts who wanna screw the genuine collector.
I still firmly believe that the scalpers caused Konami to change their goalposts on the MGS HD limited steelbook. They were selling it for £80 or whatever and the greed brigade online were making three times that on ebay.
Fair deals for all, i say . . .