Thanks Echo. Ok. I guess maybe I will.
If Detroit is like our hometown, they maintain the records indefinitely, so if you contact them to update them with you as the new owner, you might get it back in the future if it gets pinched. This actually paid off for us many years ago, when someone lifted a bike from our garage and abandoned it at the train station several miles away. Our PD just ran the sticker number and phoned us to come and get it.
Of course, if your bike comes back as stolen previously, then you'll be the one who gets pinched. (We lose more Schwinn Forum members that way...
)