If you find buying the video-games quite costly and can't afford every game then MyMacGames has sorted the problem to deliver the best services they can with announcing a new service dubbed Games on Demand only for the Mac users. The service will cost you $8-$20 for monthly subscription and will start working by the book around the 3rd quarter of 2007.

Currently the initiative is in Beta stage and will offer somewhat 100 games at the time of launch.
The initiate sounds pretty fine, the thing to ponder is the collection of games that the new service will offer.
Via: slashdot