QUOTE
Dream-Build-Play is open to any user of XNA Game Studio Express, including the GarageGames Torque X platform. No purchase is necessary to compete.
If that means what I think it does, then isn't it $99 just to start. This is what I get right from the microsoft webpage
XNA FAQQUOTE
Q: How much does XNA Game Studio Express cost? Is there a difference between Windows and Xbox 360 development?
A: Visual C# Express, the XNA Game Studio Express tools and runtime environment for Windows are all FREE. To develop, debug and/or play games on the Xbox 360, however, you must have an XNA Creators Club subscription purchased directly from the Xbox Live Marketplace. Two subscription options are available: $99 per year or $49 per four months.
Yeh, so I can have all the tools for free but to actually test them, play them, and develop them on the 360 I need $49 for a four month subscription. No Purchase Necessary my ass.