Top Spin 2 serves up demo date

Here's a racquet sport warm up while you're waiting to find out if Grand Theft Ping Pong is the real deal: According to 2K Sports Senior Producer Thorsten Moeckel, a Top Spin 2 demo will be available on Xbox Live Marketplace a "few days" before the game's April 7 release date.

How important have demos been to your gaming decisions so far? Is it pretty much a necessity for every Xbox 360 game? Have you decided not to purchase a game after being disappointed with the demo?