You can see that there is a "bidding war" going on between the first two bidders in the DX demo auction. They will probably accelerate their bidding near the end.
I hope they do not drive my price too high.
Then of course, there will probably be last-second snipers too just like in the other auctions, with automatic bidding driving the price up even further in the last few seconds. My planned bid is already way higher than I feel comfortable with. This is scary stuff.