Some of you may remember that I had an old vintage stereo receiver in my classroom. Specifically, the one pictured below, a Sansui 7900ZDB made in 1980 and producing 100 watts per channel. I purchased it from Goodwill for $15.00 many years ago. A few years ago, I brought it home when we moved to the new building, and seeing it was taking up space in the garage I gave it back to Goodwill. Today the same type of receiver sold on eBay for $750.00.

Ah well.