Organ harvesting or re-growth? (Score 1)

Hello Dr Grey This might have been covered but what the heck: What is your position on the future of organ harvesting or grow-to-order organ replacement as a component of combating aging? I imagine parts of my body are too far gone to save (liver? brain? colon?) and I might be better served to simply swap these out down the road than undertake a rejuvenation regimen. Ps.... screw all those fools, the beard rocks...if for no other purpose than an awesome sample collection mechanism.