I’m surprised it netted that much. I thought the monstrosity custom speakers and turntable / stand thing (once the actually-valuable high end arms and cartridges are stripped off) would have to be near give-aways; really just come and and haul it off. I’m surprised if anyone thought otherwise.
Then there were a bunch of electronics which are most OK, nothing special and not really big bucks - just tedious to sell in aggregate. I’m sure a good portion of the sum went to the auction managers.
I wouldn't give too credence to the "family drama" story. Sounds like someone wanted the attention. This should have remained private to the family.