It's a sad duty to do such work, but necessary. One day, someone is likely going to be doing the same for my stash of nifty things. It's a reminder to keep a record of what stuff is valued at so your surviving family members are armed with knowledge so they don't let stuff go for ridiculously discounted fire sale prices.
For instance,...this fellow bought most of his reloading components and ammo stash during the Clinton years. This is evident from the packaging that is out of date and the price tags. His daughter had no idea that 1000 primers were currently selling for $60-$70. She thought they were still only worth $16.50 from Annette's Powder Keg. (I miss that place. It was a good little supply shop.)

Price tags on the powder showed they sold for under $15 per pound.

The daughter was shocked to realize how much money her father had locked up in his 3 full-size gun safes. She thought there might be about $10,000 total. When I told here just the safes themselves are worth half that, she nearly fainted. We're still running down values, but it looks like there's probably close to $50,000+ if it were all liquidated.
Yes,...if I get tasked with disposing of this stuff, I'll be posting it here so you all can salivate over it and start the bidding. It might take a while though. She want's to see if there are relatives who might want a gun or two, which is only proper to offer. It will take a little time to see how that works out.
Once I'm done with this friendly service, I'm gonna have to go and gather up and catalog all my crap and make a 3-ring binder with values and such. I'd roll over in my grave of some of this hard-earned gear got sold for pennies.