You've pretty much summarized how A LOT of users here feel about immortality... heck, I agree with you on this one!
I don't hate you, but I'm pretty sure you and many others here will hate me for liking "In Time" (2011).
Yes. The one with Justin Timberlake.
Before you start using your sharp knives, head smashing boulders, cricket bats with nails, and baseball bats with barbwire against me, please, hear me out:
No gradual cripping effects of ageing, you live more depending on how hard or smart you work, you're not a freak to others for living for more than a century while still looking like a 25 year old, you can CTB just by stop working, death comes fast and painless, and (very important) you die looking young and pretty
(ok, just kidding).
You get the point!
(Now you can start lynching me)