
Tho' I'm a big fan of the cassette, this groovy bit of merchandising predates even my prodigious usage . . .
Detail from just below the cassette's blister pack:

Aside from the splashy design & copywriting, what I love is this is a 15 minute cassette. So words and images connoting boundless vistas of self-expression are put forth to sell a tape that offers 7 1/2 minutes of recording time per side.
Luckily, longer cassettes were also available (gotta love the multiple overlaying images of Beethoven in the Classic series packaging--click the image below for a closer look).
