One of my favorite television shows is Highlander, with Connor MacLeod {Christopher Lambert} and Duncan MacLeod {Adrian Paul}. Two siblings who are immortal and play a deadly game in attempts to become to last remaining immortal alive. In the end Duncan won.
While I will admit that living forever could be fun. Watching how things change over the years and how people change as well.  If money were no object then I think I could find things to do to keep me occupied. There would be so much time to do everything I want to do and more.
It would be absolutely horrible to watch those I love and care for pass away and therefore leaving me alone. I think that loneliness would perhaps drive me crazy unless I was with another immortal.
Mortality doesn’t amuse me at all, I will admit that I am rather scared of dying.