I've always believed that a true cat burglar only bothers with upscale targets. A common thief will break into any home or business that's poorly defended, but a cat burglar wants to make sure his criminal efforts will be rewarded. A good cat burglar knows how to bypass a home security system, for one thing. A common thief may get caught within minutes because he couldn't turn off the alarm system.
The cat burglar that struck my parent's gated community actually knew their work and entertainment schedules. He somehow knew my parents were going to a benefit concert one night, so he took his time and ransacked every room in their house before moving onto another target. The police searched a computer found in his apartment and it had notes on just about every house in that neighborhood. The man had a day job as an exterminator, so he could get inside the houses and inspect all the rooms without raising suspicion.