Silamanajik,
If one does the proper thing and removes the player from the car when it's not being driven, none of your points are valid.
I don't care if people see that I post here on the BBS or if they see my car installation pictures. I don't think car thieves go to that much trouble to steal a stereo, they just walk down the street and look for deserted cars to smash the windows. If my empeg isn't in the car at all, there's nothing for them to steal except some cheap speakers and a couple of cheap amps.
That's one of the reasons I think the empeg is good, because it can be pulled out of the car. The empeg was purchased as a replacement for a stolen CD player. It was the second time I had been ripped off, and I vowed never to let it happen again. Hence, my eagerness to own a pullout stereo.