I don't know if I'd want to live forever, but I'd sure like to give it a try.
After all, I could always check out if I changed my mind.

If the technology was developed to allow immortality, and it was cheap enough to be accessible to everyone, it would cause great strains in society, perhaps irrepararble ones. I don't think I need to spell them out for you, most people have already given it some thought. What's more likely to happen in that case is that it would be strictly controlled
and distributed to very few, probably only to the highest bidders, even if the technology was very inexpensive.

No doubt we would be told "we have to be allowed a fair return on our development costs". I guess, in a way, the situation is already here. If you need a med to stay alive, it's your fountain of youth, so the marketing model is already in place and tested.