Charity works yields old tube stuff

[Cygnus X1]

My son's AFJROTC unit helped out with Homeworks, an organization that cleans and reburbishes houses for the needy.

We were busy outside and I came across a broken RCA tube. Then one of the other parent volunteers came out with an antique radio. I asked, and turns out there was a room full of old radios, TV's, parts, and a few tubes. Many TV type plinkers.
Some GE Sylvania, RCA, etc. 6V6's, 12AT7's, 12AZ7, AZ7.
A couple of 6SN7GTA's!

And a parts box with unused Dubillier caps (600V, .001 to .05 variety). Also a bunch of rectangular color coded caps, like "Sickles Silver Caps". NOS. Are those good?

A Fomoco car radio that had 2 Fomoco branded 6V6's!
"Stop sign" labeled, like Sylvanias.

Also some radio equipment so old that the familiar octal looking tubes were actually metal based, with small pins and a ball like retainer in the center.

Biggest question is, is it worth my time to go through some of these and salvage those old tone caps? Or just continue to buy the Mallory 150's?
Same with tube sockets. A lot of them look like bakelite.
I buy ceramics. Any particular value in bakelite sockets?

I will have to figure out if the transformers are worth hanging on to for guitar amp work. Most of this stuff is so old that they were set up for field coil speakers.