My wife and I usually go to the Denver show, but timing didn't work last fall so we thought we'd go to the Tucson show for the first time. We visited 3 major and a handful of minor shows. Short version: we don't aim to go again.
TGMS "Main" Show - roughly 60% jewelry and cut stones, ~15% lapidary, under 1/3 minerals - there were a few odds and ends like furniture and lamps, stuff like that. Most of the dealers were the high-end ones who closed their Mineral City location to have a booth there. We finished in under 2 hours. The display cases were very nice - TGMS does a great job with those. The venue is very nice as well - clean, modern etc.
Mineral City - had a very odd (and unpleasant) vibe. More than half of the vendors were closed for the main show. All the dealers felt very similar - none stood out from each other. All the buildings were oddly subdivided, we had to keep going outside to get to other parts of the same building. COVID outbreak due to one dealer failing to mask/close even after a positive test.
22nd Street - mostly trinkets, but a few mineral dealers scattered through. Very clean and organized which I did not expect (the equivalent show at Denver, the National Western Complex/Coliseum show is very chaotic). We'd intended to just hit one dealer of interest and leave, but ended up walking the whole thing as it was pretty nice.
I don't know the names of all the small shows (they are often just a few tents in a parking lot) but most of them were not very interesting - carvings, beads, wholesalers, etc. I liked the Miner's Coop show, but that's pretty far north.
I note that the TGMS Show is at the very end of the "season" - maybe people had better finds early? A couple of the earlier shows looked interesting (e.g. Pueblo) but were shut down by the time we got there. Overall we did spend some money at dealers we liked (we see them at the Denver show too) but we were not thrilled with the Tucson show - glad we did it once, no particular urge to go again. I'd still like to to Munich and Ste Marie aux Mines at some point but those are a bit harder for us to get to!