After watching auctions for vouchers for several days, I decided to try my luck. I am convinced that bots are used consistently, particularly for voucher auctions. There is no rationale for why auctions for the same voucher amounts should have such a wide variance. For example, I have seen $100 voucher auctions sell for under $300 and for as much as $10. Additionally, there is no rationale for why an auction may be going along (particularly at a higher amount) with three or four consistent bidders and then suddenly stop at a number that is not rational - i. E., not at a $. 10 or $. 25 or $1.00 threshold). My suspicion is that there is a mehodology to let you win one or a few small auctions to suck you in and then eat up your bid money with little likelihood of additional success. It would be interesting to know what the drop out rate of users is.