even if you did win an auction for 20$ a night, they have fees that they tack on "per night" and then there is a 15$ processing fee
the best auctions seem to be the ones where you can get a week ....albeit, the auction really starts off at 210$ ( service fee etc + processing fee )
ready set go auctions which allow you to book from a "listing" usually go for about 50$, thus you could get a 2 bedroom timeshare for 260$ for the week which would work out to ~ 37$ a night
their customer service is good
we have used and will continue to use them for extra vacations in addition to our timeshare exchanges