[Lexarius]

That's like asking "Why are people still manufacturing bikes, you'd think everyone who wants a bike would have one by this point". Bikes generally have shorter lifespans than people, and we're also making new people-who-want-bikes all the time.

[abrax3141]

I'm guessing that it's more like people are getting them stolen regularly. What I don't get is why the bottom of the pyramid (cf other branch of this thread) doesn't fill up.

[dragonwriter]

Because people who possess stolen bikes are just as vulnerable to bike thrives as everyone else. If only non-stolen bikes got stolen, the pool of people willing to buy stolen bikes would probably not support any significant level of theft for very long, but that's.not how it works.