The perfect camera would have field replaceable parts or sub-systems that require nothing more than a coin to install. Optical area aside, in this day of high tech tech-i-ness where the camera op just like the film operator, could fix his gear because it was work gets done. I mean unless a camera suffered some sort of g shock incident where it needs a full test, cant we move towards the day of trusting, training, informing and enlightening of the owner/user so that they can make simple, due to design, board swaps? You want to talk insane, how about replacing the color wheel assembly of an old samsung display. You literally had to dismantle the entire tv. But it was do-able with a small set of tools, and lots of pictures of "BEFORE" you took it apart.
Sorry for the rant. It's out and I feel much better. Now open the pod bay door Hal.