I doubt one person will buy them all for market price again. The last guy got burnt and has like 1/3 of his money.
That said, these auctions are actually good for the ecosystem I think. It gives some big players a change to dip into the Bitcoin coin system. There are some super rich people that can't be bothered with buying a few Bitcoins at a time. This is an easy way for them to pick up 10 million worth of Bitcoin at once and not stress about it.
It is rumored that Draper is going to bid for the coins being sold in this auction as well. Also IIRC bitcoin was trading around $650 when the USMS announced that one person won the all of the coins in the auction and bitcoin is now trading at around $380 so he lost closer to 40% then 2/3 of his money. It is also not known how much of a discount he got from his winning bid.
I don't think he will bid on all of the lots this time around as the price has generally been falling recently and he could have instead have been buying on an exchange during the recent "slow motion" crash