Yeah, lots of auctions for games are going for a little less than usual now. This is good because the market should drop a little for certain games. Then again, I've also noticed that certain auctions that end at a lower then normal price typically end at odd times of the day.
The problem is there is almost no incentive (or deterrent) for a seller to use an auction over a BIN unless they really just want to sell the item/need the cash ASAP. So you get less auctions, but tons of BIN listings where people just sit on shit at high prices until it sells.