I'm suprised by how many would accept.
I would decline. Mainly because if you lived forever, you would outrun the human race (thus any kind of relationship with anyone), life on earth, and even the earth itself. You would be swallowed up by the sun, living in a fiery hell for millions of years, and still not dying. Then, when the gas of the sun is expelled, you would be living eternally in space, floating, with nothing, not even the warmth. The hell of the sun seems welcoming compared to the near absolute zero temperatures of space.
And still, you don't die.
You don't even have a choice to escape. That dreaded man... he has already left you. Infinity is a long time, people.
So that's why I'd rather die than live forever.