My recent experience of knowing people who had to liquidate machine tools. First guy was packrat, when he died the widow had no idea what to do? He had went to many auctions, collected a wide variety of machines, tooling, etc. The son, came from out of state, spent a couple of days sorting it, put an ad on craigslist for a three day garage sale, came back three months later and did it again, and 6 months later finished the last of it off. Prices were fair for everybody, both buyer and seller. Alot of work for the son, but mom got all the money!
Second guy died suddenly, wife called out of town machinery auctioneer who had an online auction and a few things brought good money, some stuff brought fair money, most of it went cheap! Widow had turned down some offers on some items before the auction thinking the stuff would bring more but it didn't? After the auctioneers commission, advertising etc. The widow got maybe 50% of the value?
Third guy had auction before he died, everything had been written of when it was a going business, after the auction fees, and paying taxes on recapture of assets he got maybe 25%?