Check out OnlyIndie - this is a different kind of e-book store where all books are priced at $0 until they are downloaded 15 times. After that, the price increases by a penny each time it's downloaded, up to a set maximum price. Nifty idea!
You can find What Stays in Vegas there too.
I can't ask you guys enough - if you've read my book and enjoyed it, please leave me a positive review on Amazon or Barnes & Noble! Positive reviews are the best thing ever to an author (well, the best thing ever would be millions of dollars, a publishing contract, and a movie deal. Baby steps.).