We already do prostetic limbs, we use pacemakers for hearts not fully functioning, we use glasses/lenses to make up for imperfect sight, i don't see why we shouldn't go a step further, and not limit ourselves at repairing our bodies, if the scientists have ways to enhance them.
If i was offered augmentation to enhance something, i wouldn't turn it down, unless i doubted the safety of it, or if there were cons that outweighted what i might enhace.
For instance, if i could get an artificial eye that gave me nightvision or thermo vision or something else, without the cost of something else, GIEF!
If i were to be offered an artificial arm, with increased strength, at the cost of the sense of touch as mentioned in a post shortly above, i would turn it down, cause i don't really need the strength, but appreciate beeing able to feel with my hands.
I haven't heard of technology at a good enough level yet, to be considered safe, usefull and worth the tradeoff, but i might be wrong.
regardless, when/if it comes around some day, i'd find it very appealing.
And this doesn't just apply for mechanical/electronic augmentation, we also use medicine to cure ilnesses, something that allows us to live around twice as long as people did a half a milennium, if not less, ago. Why not ehnace our bodies that way too, once a safe way comes around?
The immediate thought here is steroids, which to my knowledge still has a lot of side effects, at least if used incorrectly/excecively, but it might have potential (if it ain't already so) to keep people in a fit state, that would not only grant us brute strength for punching and lifting stuff, but also make us more resilliant to damage caused by accidents.
What if you could do the same for the brain? what if you could be medically altered to think faster, harder and more effectively?
What if you could enhance the bodies natural immune system? Reduce if not altogether remove the need for sleep? Slow down, or even stop the ageing process of our bodies when past our prime, where the body starts to slowly crumble?
I'm not sure it would work as the world is now, where hardly anythign is made or maintained, unless someone is making a profit out of it, but for the sake of the discussion, i'll be willing to look past this for the moment, as this, while connected, is a different issue in itself.
But if we have the potential to become mroe than we are, as we're already trying to do with our societies and our technology, i don't see why it shouldn't be done with ourselves as well.