Opportunistic thieves, as opposed to pros, usually don't take fragile housewares or huge pieces of furniture, either. They're after cash, jewelry, and electronics. Maybe silverware, if you just happen to have a sterling set sitting out :-).
So you stick your cash in your pocket, your jewelry box (and your sterling flatware set) and a copy of your insurance policy in the trunk, and get out of town.
The main problem with today's thieves is they also like to TRASH the house (class warfare) while they do their dirtywork..........