Right. It's not even that they need to create a market. These things are already selling on eBay for hundreds of dollars. I guess it's a fairly common decor element for offices and homes. The same goes for old typewriters.
There are obsolete electronics that would be a lot harder to sell, for example CRT TVs - but phones are basically free money.
There are obsolete electronics that would be a lot harder to sell, for example CRT TVs - but phones are basically free money.