the white tape on the camera and stamps are just ridiculous. A thief will not care if you have a 20D or 1DX... like others have said, they're probably looking to get about 50 dollars for it anyways, so what's the difference?
If anything the white tape is going to attract a lottttt more attention. I wouldn't stop staring at you if I saw you on the street, i'd be thinking to myself, "what does this guy have going on under that tape? what's in the rest of his bag?"
This solution doesn't make your camera look old and cheap, it makes it look like some kind of prototype test copy(besides kai.)
I think this thread has gone from semi useful, to downright ridiculous.
just get insurance, use common sense, act like you belong, and know when to give up if confronted(as said before.) I'd say the taping is just going to give you unwanted attention.