Just do a 1 day auction. I just came from 2 Walmarts this morning 1 hour prior to opening. Both had lines with more people in them than there are units available(50 for 12 and 20 for 6). Some people were there overnight with temps in the teens (F). This is the 3rd US shipment already.
I bought 3 on launch day and make ~$90 on each of the 2 I sold. I need to secure one to keep to give as a gift. I kept one for myself obviously...