Personally, I had a kick out of reading this thread. I have to say, 5150 is a pretty funny guy. The fact is, not only can he spell and type in full sentences, but he also isn't committing fraud, since he technically never won any of the bids. Remember the way ebay works: you don't get to outbid others unless your bid price is higher than what the current price is, and someone else comes along and bids. That means, a bidder had accepted the higher price in the first place, and hence said bidder shouldn't complain about if the price gets driven up. If one walks away with a lower price than intended, then that's that person's luck. But if the same person walks away with an item of a higher price, then that was that person's own choice which led to the bid. Granted, I don't agree with scalping at all, but it's not as if the 360 wasn't preorder-able to begin with (as opposed to concert tickets or something). So anyone who really wanted the system should/would've preordered a long time ago.
So, if there is demand for something, why can't people with supply make some money out of it? If they're willing to shell out $2000 bucks for a system, then why should any of us deprive them of the enjoyment of getting one? I say all those who're opposed to 5150 driving up the price (but not winning) is really just envious of the people who actually has a system to sell, and are selling them at $2k each (but if it's someone that is just messing around and subsequently wins the auction, then yeah, that person is committing fraud).