Crooks have usually cased the place before they hit it. Believe me, they know your place doesn't have anything of much value. Most robberies are for cash or some item that be quickly pawned for a little money.
I operated a hobby shop for about three years. It was located about 3 blocks from a street that was then known as the "crack capital of the county". I knew that and wore a .38 spcl. snubbie on my hip. I had two city LEOs and one county LEO tell me that the word was out on the street. "This guy is packing and willing." They told me that's why the bandits never hit the store or me coming in or going out.
Now, that's not saying you won't ever be robbed at your place. It could happen. But the less you have to steal, the less chance of it.