I'd like to live as long as is possible. There's nothing waiting for me when I die. So all I'll ever experience, is what I experience in life. No matter how long or short that is.
I'd rather feel pain, sorrow and grief than be dead...at least I would be alive to feel something. I'd rather be shitting my pants in an old age home, drooling as I watch Matlock re-runs...better than taking a dirt nap and ceasing to exist or even knowing that I've ceased to exist.
Although, no matter how old I am, I plan on getting in a few daily beers, have a peek at 20 year old college girls at the mall, and making people hate me. It's something you don't lose with age, so it's a good long term plan.