This is amazing: Scientists Make Progress in Tailor-Made Organs – NYTimes.com. It’s still in the early stages, and it is possible that the more complex organs will not be that easy to grow (e.g. parts of the brain). It’s worth reading, as well as worth thinking about.
There may come a time when people get their organs changed like they were shoes or tires on cars. When the difference between rich and poor will depend on the ability to swap out organs.
The future is here, all around us, happening while we look elsewhere.