You should allow payment in dogecoins too. I purchased at 0.25 cent btw. Another suggestion is you might want to change the increment of payment to small number than 0.05cent. The value of the service increase directly with the number of people viewing the site. The initial users will want to get in because they see it can be big, so they don't mine spending a few cents, but you want as much new users as possible so the word can spread. Also, provide some mechanism that they can spread the word about their purchase.
Thanks! I'm going by the whole "if your first release doesn't embarass you, you released too late" mantra. PayPal's easiest for me because I've done a bunch of IPN integrations already. I want to add BTC and DOGE as well. It's kind of a learning project for me to mess around with, as well as an interesting question.