Our future certainly looks exciting from every perspective.
Recently I made a little dialogue in which I discussed the possible implications of bionic parts for our bodies in the future.
3D printing is certainly a step in the right direction, and I cannot wait to see a proper market of good 3D printed organs. Every person who is addicted to smoking for example, could suddenly get new and healthy lungs without the need to wait for another person to die and donate his/her lungs.
The future is coming faster than we realize and it is better than science fiction :D.
Cheers!