Something else to fix!

The human body has many enviable traits over a machine: self repair, remarkable efficiency, etc etc.

But there's one really awesome aspect of machines we should get to work on: a machine, if broken, will sit indefinitely until repaired.

Imagine! You are rent limb from limb in a horrific accident, your body ... stops. A good Samaritan happens upon it later, stitches it back together, puts in some fresh blood, gives it a bit of a kick-start, and away you go!

Screw cryonics: I want to keep indefinitely at room temperature, with no special (post-mortem) treatment.

Well, yeah :P This is a strong argument for trying to prevent fatal accidents!