I used to buy 2-3 per year at $30-50 each. There wasn’t a big selection and typically only best sellers would on the shelves at Waldenbooks or Cracker Barrel.
Amazon helped quite a bit as prices dropped by 30% and I bought 4-5 per year until audible. I was an audible subscriber for 10 years until my library got Libby. Not as good but free and I can read more now.
The market seems 100x as big both due to cost and ease of use. Switching cassettes and CDs was a pain.
