Because I would rather live like 10 billion years than less than 100 years bro.
Plus watching the universe die is something I want to see.
10 billion years isn't even close to the end of the universe. It's estimated that the time it takes for a supermassive black hole to die is 10
100 years. 10 billion years is 10
10 years.
You won't live anywhere close to seeing the end of the universe, because your robot body will waste away from radiation long before then. Just give up now.