Part of me wants to see what happens after you die, if anything at all. Not physically, as we all know that, but mentally and spiritually. There may be nothing, but it irks me when people say that there isn't when really there's no way to know that.
As for living forever, no. Once you hit a certain age, your quality of life would just go downhill, and if you could stay one age forever, then it would get boring after awhile unless the people you loved stayed the same age too.
Sasha sums it up best - if there is no ending in sight, then what is the point of living?