Game sales dropped due to crappy games, nothing else.

If you do create an account just to mess with it and then delete the account (or change your DNS server settings back to the auto setting) use 'ipconfig /flushdns' from a DOS prompt to clear your cache. All you're lookups will go back to your ISP (and not keep the ones obtained from any OpenDNS queries).

Alot of gamers have a creative card in their box so cant switch to Linux without having to buy a new card.

Big blocker to Linux game development was a lack of audio driver from Creative for Linux. This isn't the case now (the code is available and building it is simple) and more importantly, they work. The only reason I've not moved to Linux is the lack of AAA game support, hopefully this will change.