I remember on some of the older Benzes, any blower motor, even aftermarket, was so outrageously expensive . . . think multiple hundreds of dollars . . . that guys would carefully take them apart and spend however long it took to find those brushes, bearings, or whatever it took to restore it to proper operation
Of course, these cars I’m thinking of were far less common than a Corolla, so there were less suppliers of these blower motors, and thus the prices were much higher.