>It is a hedge against technological development in cell reprogramming and repair - technological development that is progressing at a revolutionary pace right now, and that will soon enough enable old cells to be restored to youthful configurations.

Popular science has has been on the verge of immortality for hundreds, if not thousands, of years. My point isn't that it isn't happening, but statistically we are probably further away from cell repair than you think. If you have cash to burn, there are worse things to gamble on.