Absolutely. In fact, I'd bet the farm that beezid is using bots to artifically increase the bid price.
I can't imagine why. The whole selling point is that the selling prices are so low. That's like a casino cheating -- why bother?
Oh, and like the last poster mentioned, people do wait until the final moment to post, but with clock extensions, you can't snipe an item like you can on Ebay. The extender is a critical piece to ensure more money.
You can't snipe on eBay anyway. It doesn't work. All sniping does is make you pay a higher price because the apparently low price towards the end of the auction draws more snipers.
But you're absolutely right that the bid extender is critical. Unlike eBay, the way beezid works, sniping would work. They need to keep active bidding as long as possible.
I wonder what would possess people to believe they could actually come out on top there.
Look at all the pyramid schemes here.