Vintage steel bikes have gone up in price quite a bit in the last 5 years or so, especially in big cities.

Every bike is worth stealing, unfortunately. I had beater bikes stolen, one had duct tape on the rims, another one with visibly busted rear brake. I probably couldn't have sold them if I tried to; but then I don't sell to sketchy characters for $10 or part of a hit.

Almost 20 years ago, I had a ten-speed junker I bought for $20 just for riding around town, only three gears actually worked, but it got me around. Somebody stole it off of my front porch.