I don't need an afterlife where the evil are punished and the good are rewarded. Nor do I need a form of reincarnation that assumes I'll retain my consciousness past my current life. This life and this consciousness I have of my Self, at this time, in this form, is the one chance I have to experience everything in this precise way. It's enough trouble trying to learn and experience all the things I want to in my present form. I think wanting to extend the lifespan of our consciousness to the point of needing an afterlife or wanting more lives to live through is an unfulfillable greed.
I think would like to live for as long as I can though, at least, for as long as I can maintain rational thought. If nothing else, I'd like to learn and think as much as I can, and the longer I can do that, the better. Because that great death that's all nothingness is frankly kind of scary, and if I'm never going to wake up again, well, I'd like to think I tried.