RX1 Awesome, but wish it was E-mount

As a Canon user I applaud Sony for making this. Well done. However I can't help but think it is a shame that this camera isn't E-mount. Lenses far outlast bodies. I have inherited an old Leica and 2 lenses from my grandfather, they are a joy to have and use. As-is, eventually the RX1 becomes a really expensive paper-weight. Someday the body will reach the end of its life, and repair will not be an option. And then the lens will go down with the ship.

On the other hand, conserving size is a good thing. I wonder how much of the lens is inside the camera...?