Bought at Charnock Richard service station on M6 in 1988. Bought very few albums on cassette, it was a medium for recording stuff to play in the car. Safe to say every single one I bought was either a freebie or out of a bargain bin.
I bought these a few months back. Unused but the brittle wrappers had fallen apart on many of them. Hissier than more modern metal formulations but these Early Hitachi and Maxell Metals had incredible MOL figures and work brilliantly even today.
I can see that it does have disadvantages in terms of usability, like finding the track you wanted to listen to, and its long term fragility, but on the plus side it is inherently reusable and cassettes used in cars were easier to use than CDs.
On the other hand, dragging a sharp rock through a plastic groove that cannot be rerecorded on is hardly the last word in practical. Granted you can play a record back using a pin and a paper cup, but I am not sure that I would want my music delivered like that. :0)
Probably last one I bought was a boot leg of some description. Huge amount of them back in the day and good way to hear bands live (although most were terrible recordings)
I never bought many. One of the earliest I bought was “Mothermania”, the label/inner of which I dropped in the bath whilst listening to the cassette on my Philips EL3302