Their argument is that it's now $380 instead of $640??

Right, that's just fucking great logic.
If anything that will trigger more players to bid higher then the market price now when they got a chance to get it cheap.
Fucking broken logic, did a woman done came up with this?

About the other 90k coins, we don't know what time these will go off on auction and the price could EASILY be more then $400 at that time