I didn't vote, because "I don't know": it depends on whether I feel the need to upgrade certain equipment (or I am forced to do so due to failure, etc). And the crop of available titles may encourage or discourage my enthusiasm. I'm sure eventually I'll jump into 3D, likely before 2012 (world is going to end anyway, may as well buy some cool toys...
), but I just can't say "when" right now.
Now give me $20K to burn, and I'll jump in with both feet.