I like the idea of living for ever but after doing a survival course am not convinced a liferaft is what I need. I know of sailors in their sixties who keep their life raft below or in a locker, not wanting it nicked but cannot lift it without help. A lot of people keep them on their coachroof but this is not where you need an extra 50Kg and it spoils your view ahead.
I am on my second Etap and have invested in many precautions to try to avoid fire, my biggest possible problem.