I really want to believe that people aren't stupid enough to pay $10 for 20 of these codes. Some of these are more than $.50 per code, you could just buy the damn pop by the case if you were just going to spend that much. That being said this is a great idea by whoever is selling them, you have practically no chance to win with just 20 codes and if you can make a few bucks for doing nothing but emailing yourself over and over why not?