This is more towards console gaming. I do PC game, but for the last 2 weeks, and the next 2 will be Diablo 3. There’s a month long event for a game I play on console, so I’m doing that almost exclusively.
My wife’s Nintendo Wii allows for games to be downloaded digitally through Nintendo’s online services. My XBox 360 has Steam, so I can download and play a lot of games on my XBox’s massive hard drive. With the consoles being able to digitally download whole games, there will be less and less need for buying discs.