On top of that great price, "Free Shipping, 60-Day Return & Price Guarantee on this Product."
So mine for 59 days, then ship em back for a full refund!
Or, if you have any sort of ethical or moral standards, don't do that.
What if he donated all the bitcoins he mined with it during that period to impoverished families? Would he then be some sort of Robin Hood? Hrmmm.....