Too many big fish
DealDash seems to have several big fish that gobble up just about anything with value. Sure, I have seen some auctions go to small fish, but that seems more luck than anything. It seems that every time I am in an auction, it doesn't matter how high I am willing to go, there is always another bidder that seems to have unlimited bids. It is really frustrating. If you are going to do this, take all of your bids and bid on ONE thing and hope to win. That is about the only way to prevail.