I too love to fly and did so this morning (well, it actually supposed to be this morning, but we were a bit late...). I'm going to be on flights at least 6 times more this month, including a pleasure trip. I fly primarily for business, and the most important thing I can do to help now is support the economy and continue to do my job. I also intend to give blood, make a cash donation, and buy stock on Monday. I wish I could go to New York and help out, but for me its not realistic.
I will admit, I did feel a bit guilty about upgrading this morning, but I couldn't figure out a good reason for it. I'll continue to fly and probably try and rein in my cynicism for United, which prior to this week had been brimming.