I would have locked up all of my bikes that were stolen from my garage a few years ago. Among them was a Surly 1x1, a Bianchi DISS, and my daughters Specialized Hot Rock.
I recovered the Bianchi. A guy at my LBS saw a kid riding it around and called the police. The 1x1 and Hot Rock are still MIA. It was no big deal replacing my daughters bike, but I really miss that Surly. I've since gotten another.
There are almost no bikes that I've gotten rid of on purpose. I still have all of my bikes except the Bianchi that I parted out to build a ss for my gf. I don't really miss that bike though. It was a rigid aluminium bike and beat the piss out of me.