As you know Blizzard just announced Diablo 3 will be coming out on May 15, 2012. For now you can Pre-Purchase a digital copy and ready to play whenever the servers go live. If you bought the game, you could download the game but you wouldn’t be able to play it yet. I like the fact buying a digital copy would save me time for travel and possibly lining up at store. I’m currently downloading it and 7.6 GB total for Diablo-III-8370-enUS-Installer.