After the Spring 2000 semester, I noticed that the bookstores had junk book bins. Students would dump into the bins any books that the bookstore would not buy back. Anyone was welcome to rummage through the bin and if they found something interesting they could keep it.
The bookstores wouldn’t buy books back if they knew that a new version had been released. They of course wanted to avoid being stuck with useless inventory. I wondered if these books had residual value elsewhere. I collected a few and took them home and started looking up them up on half.com. Sure enough, all of them had listings and lots of them were listed for 10’s of dollars!
For the next few days I made a continuous circuit around all the bookstores, loading my car with any books I found in the bins, and dumping them in my living room. At night I would list the day’s haul. Because my inventory was free, I always listed $1 lower than the cheapest listing.
I now had an inventory of several thousand books and a very irritated set of roommates, including my future wife. All I had to do was sit back and wait for classes to start somewhere in the world where one of these books might still be in use.
Within a week orders started to roll in. Soon I was heading to the post office daily with a huge load of books. Things would quiet down whenever a there was a lull in sessions starting. I’d replenish inventory as the various summer sessions completed.
Fall semester generated a huge bump sales and I was able to get a huge inventory of books when the semester ended. Unfortunately that proved to be the last semester of junk book bins. The stores got wise to what the kid in the beat up Honda was up to and started collecting the junk books for themselves.
I continued to sell what books I had and that went on for the rest of the time I was in school. After graduation my wife demanded that I chuck the rest. She’d had enough of random stacks of old textbooks.