>> Unless you own something very exotic and the thief has essentially been hired to steal your specific car,
That's the entire point of my post, sorry if it wasn't completely clear. Having been in the community of people who own very expensive/exotic vehicles, these cars almost never get stolen by opportunistic thieves. If someone is coming to steal your ferrari, they are coming to steal your ferrari. They don't care what your neighbour has(they probably know already and they decided to steal yours first).
That's the entire point of my post, sorry if it wasn't completely clear. Having been in the community of people who own very expensive/exotic vehicles, these cars almost never get stolen by opportunistic thieves. If someone is coming to steal your ferrari, they are coming to steal your ferrari. They don't care what your neighbour has(they probably know already and they decided to steal yours first).