They run two accounts and pull the auction a tthe last second if it does not reach what price they want.
Then send it back to main account and relist it till they get price they want.
Yet another reason HUT is flawed and I really hope HUT is completely revamped for NHL 15 or i wont waste a penny on it.
They need to get rid of all completion bonus for teams ,monitor all the multiple account cheaters (look at auctions on PS3 atm and tell me there isnt a blatant cheater with all funny similar names )
The entire HUT system is designed to best suit cheaters and if you are like me and never would cheat or break rules then you just will always have a lesser HUT team unless you are extremely rich and pump 5000$ into buying packs per season.
I am convinced that the people making games that sell products are the ones making sure the game can be manipulated and those same people likely are making huge amounts of EBAY money selling the cards.