Ah yes, the disposable culture and built in obsolescence! I can understand it sadly.
The wife had a B&D sander, a multi type one. That stopped working and I discovered that the problem was the connection between the motor and the pad had worn. Basically a small metal lip had worn away meaning the pad and drive part just came apart. There was no spare available. In fact, it was pretty much the only bit that there wasn't a replacement for. I reckoned it was fixable if you had the time, know how and capability to fashion up something... so not by me! Everything else about the sander was in good working order but, for the sake of something simple like a circlip, the thing had to be binned. Stuff like that just grieves me!