I can't relate to this at all. When I'm dead, I'd like to cease. I have no desire for my brain to outlast my body.
The comments in this thread to the tune of "anything is better than being dead" actually kind of took me by surprise.
I can conceive of a point where technology and society has developed to a place where bodies are replaced after death with something that's worth "living" in again, but that's a long way from wanting to be a brain in a vat purely because it means I'm not technically dead.