"Discovery" Coins - Designation, Process, Worth It?

It's always fun to discover something new, or at least think you have. This got me to do a quick investigation this morning.

NGC designates "Discovery Specimen" - I see the famous 1943 bronze cent, a 1822 25 cent, 1926 5 cent, 1837 50 cent, and of course the recently famous 1854 $5 designated "discovery of a lifetime".

ANACS designates "Discovery PC", which in a quick search seems to be mostly VAMs.

PCGS has done at least two, designated "Discovery Coin", for a Washington 25 cent DDO, and a VAM.

One forum has a post that indicates that what they needed for this was a "certificate of discovery" from CONECA and then the TPG gave them the "discovery" holder. I looked into CONECA briefly and they don't seem big on the series I'm interested in.

I'm curious if anyone on here has gone through this, what their process was, and was it worth it? I'm guessing the actual designation on a slab might not command any premium for the more "run of the mill" stuff like a new VAM or doubled mint mark. So then I suppose it boils down to recognition. Recognition can be a strong motivation, so then I wonder if stuff like this gets "poached" off of forums like this one.

I didn't find anything specific on here related to this, but I didn't dig very far into search results either.

One of the interesting things I ran into was this article from 2012 where a collector came out after 30 years to say, no, actually I had the first one. :) https://www.coinworld.com/news/us-c...ars.all.html