The technology that will made in the future is getting nearer per second, will you extend you life to a 100 years without aging or be immortal and experience the technological achievements that mankind will achieve far away from our current future and witness the hideous downfall of humanity itself???
*life extension means that your life will be extended to some extent but youŽll die eventually but youŽll be looking young until your last breath(though itŽs optional to look young)
Immortality isn't really sustainable for a large amount of people. Even if a method is obtainable, I think it would be stopped from being released.
Life extension to like age 200/250 would be good, but again, if all 7 billion people started living to 150+, I can't even imagine the strain on resources.
When it is perfected, I see it becoming a privilege for super-rich people who can afford it.
I don't think I would want to be immortal, because one day the universe is going to explode and then you would just be floating in darkness and nothingness for all of eternity.