Eh, living forever wouldn't be fun. You couldn't make bonds, with people. Life is so short, that's why you savor every moment; that's why it's beautiful.
Tough one, living forever sounds awesome and I am scare of the unknown and afterlife but seeing your friends and love ones pass while you live for ever isnt much fun either.. Meh if anything I would choose immortality just for the heck of it.
It would suck IRL. To live all your life with everyone you love and care for die away from you. I wouldn't be able to stand it, I'd end up a loner and miserable. Plus I'd probably get really bored with life itself living for so long.