I think it’s still a migration of a rather knowledgeable part of the windows users. I did migrate a year ago because of frustrations from windows pop ups showing up like they own the computer.
I a still reluctant to recommend it to my partner who is comfortable with windows but not really techy. As long as Linux works, it works. But when you need something a bit more involved or something breaks, the terminal will be harder for those users who might not have ever opened CMD in windows.
Do you have places where you can buy those old business drives? Are there websites for this market?