I'm guilty of doing the sticker thing... putting up stickers saying my house is protected by a well known system, and really- it's just stickers. I figure, most people would just pick a house that's an easier target, rather than test one that says it's alarmed. I know theives know that trick... but... it's better than nothing. That, along with some cheap contact alarms that make a loud noice when the contact is broken that I picked up at a department store... and dogs, I think I'm ok.

I hope! (Knocks on wood!)