Great replies, thanks! This was an excercise for me as well, because I had never before given a thought as to why I tend to prefer whites.
But I came up with a few more problems. I love fish, so whites tend to be a more natural partner for fish (I don't seem to make them in red wine sauces often). But here's the tricky question: is my food influenced by my love for whites, or vice versa, or is it such a symbiosis that it doesn't matter?
Also, I hadn't thought of what I "cellar" as in the long term and what I drink in the relatively near future because I'm relatively new to wine and therefore I admit that my tastes probably are in flux. Who knows - I might become the greatest fan of spoofulajuice in the near future!

Well the high probability of flux in tastes might be a reason I'm so willing to cull all sorts of wines from my modest collection to make room for other stuff. I *want* my cellar to be in flux also. I guess my cellar is a bit Heracleitan in that respect.
What a wonderful excercice this is. I really should think more closesly about what I drink, what I buy, why I drink, why I cellar, etc. ad inf. Until now I've just bought whatever was available and somewhat interesting and opened it when I felt like it. I don't know which is the preferable way. To plan or not to plan, as the annoyingly teen-age-like Hamlet would have asked if he collected wines. Or should I even care about this?
-O-(can you tell I've fried my brains today with Semitic sound changes today?)
I don't drink wine because of religious reasons ... only for other reasons.