Yeah, I was going to use it for my online gambling (legal) site, and found the dynamic IP problem to be the real decision maker for me. I use smartfox server as a socket server, and renewing a license with a new ip address takes 24 to 48 hours, which means death to an online gaming site using social networking.

The static IPs make it possible to use AWS now. I can finally add voice chat functionality because of the power behind the large and extra large instances.