What are you looking to achieve? For deterrent, use dummy cameras. For anything likely to be good enough to be used as evidence, you'll be spending a few times the quoted figure at least.
But if you want a grainy, blurry image of someone doing something, then great. Not sure what that gets you other than than a souvenir of your burglary though. Are the cars on the street or driveway? Can be a legal can of worms if the camera's view goes beyond your private property.
I'd go down the usual routes – motion-sensing lights, making the property look occupied, decent locks, avoiding leaving anything of value in the backs of cars, etc – before spending a load of cash on a home CCTV system.