Yes there is a need for death that we never have to think about because until someday in the future it is unavoidable.
If we stop dieing , will we also stop reproducing?
I agree that the wealthy will have more life extention products first, the same way they got flat screen TV first, it is expensive to be an early adopter of technology .
Then as the techniques are learned , proven , refined, the techniques of mass manufacture lower the price.
This could be pretty sweet if it allows the prevention of extinction of endangered species , or not so good if we become a pestilence on the planet.
Perhaps we really do need to colonise space. Doubleing our lifespan would more than doubble the rate of population growth.
Do real Christians want this?
If you do not die , you could still see reserection in the rapture, but if the tecnique requires harvest of stem cells from embryos that must be destroyed in the process I couldn't want it.
How about real Hindus? Bhuddists? Avoiding death is natural but human nature has coped with the idea of inevitability in various ways, coping with the opposite idea will be a new difficulty.
I just had a thought , the very first of the early adopters might be the people in power in those countrys prone to gerontocracy, Fidel need never die , China could have a really permanant power structure.