Definately die at 65. I don't want to live until the point where my body starts to be unable to function properly, like not being able move my fingers quickly without pain. I'd like to be able to have 5 years of retirement, where I could do absolutely anything I wanted with my time, and be able to do it without being hindered by my deteriorating body. I'd like to die content with myself and my life, and 65 seems a very appropriate age to do so.