The thieves will think about their misbehavior the rest of their miserable lives.
Don't mean to burst your bubble...but I have been in LE for over 18 yrs, the last one as a detective. IMO most thieves don't give a rat's ass about how you feel or the effects their criminal activity has on you or anyone else. They only care about themselves; they are evil, selfish and lack empathy. Some I've charged have even bragged about their exploits or had the audacity to consider their thieving as their "work". They will sell your property for 10 cents on the dollar or trade it for dope. They will never have even a tinge of guilt or regret. Their only regret is getting caught and sentenced aka held responsible. But they know that in this once great nation, their acts of cowardice are no big deal. They'll go to jail or prison, make new friends/contacts then come out and start it all over again. It's merely an inconvenience to most. They'll apply for & receive their food stamps, "free" Obama-phones, and medical etc and enjoy their dope in the apt/house you paid for....and the dope they bought was with YOUR stuff....just telling it like I see it daily.
As to deterrence, my advice is this; make it as hard as possible so they go an pick on/steal from someone ELSE. Don't leave stuff in your boat, car, truck etc. Lock your stuff up when possible. Engrave your DRIVER'S LICENSE NUMBER and a phone number on everything of value. Take digital photos and keep good records of serial numbers. model numbers etc. Get a house alarm. Get a GOOD safe. DON'T BE AN EASY VICTIM!
Another trick, new thing is this
http://www.copdots.com/. We have begun looking into this product and it appears pretty handy for LE. But the more people that use it, the better. Is it fool-proof? No. Nothing is. One more thing. Support your local LE and demand that those that make laws provide funding to ENFORCE those laws. We can only do what we can do and the revolving door of prison has to stop.
One more thing; If someone breaks into my house while I'm home...they are leaving in a body bag.
That is all....