No, but only because I've mostly stopped purchasing gaming books.
For D&D, I'm not buying anything more until I've actually tried 4e. At which point I might buy up the occasional supplement... but I've decided to try to avoid getting on the treadmill for this one.
I'm keeping my Pathfinder subscription up to date, and bought the Campaign Setting when it came out. But the next purchase I'm planning for that game will be the Core Rules when they are released a year from now.
The only other games we're planning on playing in the next two years or so are SWSE (which I'll be running core-rules only, but might invest in one of the era supplements, for either the Knights of the Old Republic or the Force Unleashed), and WFRP (for which our next campaign will be homebrewed, so no further purchases to make there).
So, between a lack of 'need' coupled with a lack of books that pique my interest, I'm not buying many books anyway, which means the economy isn't affecting my purchases. However, had this economy hit three or four years ago, it most certainly would have had an impact.