Hoarders houses. I have a brother in law who has a room full of guitars on guitar stands. I started dating my wife 11 years ago and in all those years have never once seen or even heard word of the guy actually playing any of them.
They sit for decades in Pawn shops and music stores run by old timers who don’t know how to sell online
Attics and closets of people who quit playing or never really started. This is why so many old school basses are found from estate sales.
A lot ended up in other countries back before shipping cost got insanely expensive. I used to ship basses all over the place; Germany, UK, France, Dubai, Asia, Mexico, Canada, South America. In fact the majority of basses I’ve sold to this day shipped to a different country. These days that’s much less common and online sites now have filters to limit buyers by location because there was a point where shipping got out of hand. I remember I had to back out of an eBay sale once because the buy was from India and the shipping cost was so outrageous I would have been practically giving the bass away. So a lot left the states and aren’t coming back into the states.
Unfortunately a lot of them end up in the garbage. For whatever reason. Could be damage from carelessness. I’ve seen several destroyed over the years when guitar spins were the cool thing, know a guy out of Raleigh NC who’s girlfriend took a sledge hammer to all his. In some cases they are tossed because the action was terrible but they never learned how to adjust a truss rod.
Cheap starter basses tend to be the biggest sellers. That’s why guitar center has shifted much of their inventory towards cheaper basses. But those basses have little to no second hand value so they end up in the trash.






