I'll join once an auction format is in place
Who would dick around with an auction? Time is money. Dont need to sit there for hours outbidding someone. If I wanted that I do ebay and buy a card myself.
OK then.
The format would work like market rate EC2/AWS machines. Rigs would always run with a standard set price. Users could bid xx per hour per khash. If a machine goes IDLE the highest user bid is picked up and the machine is rented. This ensures #1 that rigs are always rented and #2 that rates are set by the market to give rig owners a higher return.