I said yes, because I took it that the assumption is that we don't live forever, meaning a final non existence and death of the soul. So, if that was the case, I'd want to live forever. (Though I do believe we actually do live forever in some way or another, either through souls or other's memory or whatever)
I also think that we measure time by our experience/age, which means the older you get, the faster a day becomes because it is a much smaller part of your existence. So a single day, after living 18,262.5 days (50 years old) would seem much faster because its only 1/18,262.5 of your current existence. I'm 20 years old, and so far that seems to hold true. A day seemed much much longer to me as a child, now its gone in an eye blink. I can't imagine how fast it will be if you were a 1000 years old. That is of course assuming that it doesnt top out.
The only question left to your hypothetical question is how you live forever, are you invincible? (sorry if this has been answered already, havnt read through the whole thing yet) If I was I'd totally play the super hero role for a 1000 years or so at least.
I think I'd even play the villain occationally...ooooh to have an arch nemisis!
Someone mentioned Heinlein, I love his books, he's really got some great ones and he says sooo much just under the surface of the obvious.