There are deterrents, as previously mentioned, that signal additional risk for a thief.
Signs, dogs, fences and gates, etc.
We have two dogs, the complete opposite of vicious, but they make a great deal of noise to alert us if home. They are actually just a noisy welcoming committee. One is a pitbull and one is a golden retriever.
And we are home a lot. However, google our home, which is what thieves do, and you will see what's in the driveway (cars, boats, RV's, whatever you might have), that we are several hundred feet off the road (which is also a deadend road), a heavily wooded lot, and no close by neighbors.
We have a circle drive near the house and wood shed, and Sunday mornings we do get drive thru's on occassion.
I have previously posted of coming in the drive at dusk on a Saturday evening to find a guy here, claiming he thought the house was for sale. He refused to show me his ID, he left and I got his plate. I called the sheriff. The dogs were up north at my wife's family cottage with her for the weekend.
The next day the sheriff told me they went to his house immediately after running the plate, and he claimed he had not been out, but the hood of his truck was warm, and his dog matched my description. When they ran his name, and he was scheduled to go to court for breaking and entering. Go figure.
In my case, they called him an "uninvited visitor", and gave him a verbal warning. Nothing illegal to pursue.
At one time we had three teenagers coming and going, so that for a time was another deterrent. But now, the truth is, I feel vulnerable. For one, when the kids were growing up we didn't own much. It wasn't until the oldest began college that we bought a used quad, and added to that, little by little. In the scheme of things, we still don't have a lot, but what we have would be hard for us financially to replace, and honestly, we probably wouldn't. Insurance coverage is certainly iffy, with most items that can be carried off heavily depreciation by age.
So back to suggestions on what camera system would work, would be sufficient, and what to stay away from.