I chose "I probably won't move to 4E, time will tell," but time won't tell. I just won't be moving to 4E. The recent trend towards "miniaturizing" (as in D&D Miniatures) their products (Fantastic Locations and Sons of Gruumsh, for instance) has really turned me off. I am a recovered MTG junkie, and have no intention of running a treadmill of, "Gotta buy twenty packs of Battle of the Depraved Halflings to make sure I get the villain and her cohort for the upcoming adventure module release," for the next 8 years.
I am still buying anything and everything Forgotten Realms (D&D only, not the crap novels) that Wizards produces, but it's only a matter of time before the setting is retired, IMO. Eberron doesn't do anything for me at all. You can take your warforged and, well, you know... I haven't purchased any "core D&D" books lately, except for FC1 (and will probably get FC2), as most of the recent releases just seems superfluous (Complete Arcane AND Complete Mage, now COME ON!???!).
It is kind of liberating in a way, as someone else posted. Now that I know the end of 3.0/3.5 is in sight and that I'm not "going 4E", I am rounding out collections, and cherrypicking/stockpiling non-Wizards d20 products that I might want to DM in the future. Especially campaign settings. I'm also shopping around for new systems. Runequest seems promising, though I'm not a huge Glorantha fan (but GO LANKHMAR!).