I have sold 3 8bs and 1 7c in the past 3 years local cash sales through Craigslist or Facebook Marketplace, NorCal area.
The 7c I sold 3 years ago, untested but very good cosmetically, sold for $4000. The first 2 8bs I sold 3 years ago, they were mint with cages but untested. Each sold for $3000 within 30 days. The the 3rd 8b I sold about 2 months ago, it was on the rougher side cosmetically, no cage, but worked beautifully. It sold quickly for $2800.