The guys with the working Pluto's should run some net link games and play against each other. That would be a cool demonstration. I think the US netlink Saturn games all still work if you have a dial up connection as I think it was peer to peer dialing each other rather than needing to dial a sega run server that is defunct in 2022, like most Dreamcast online games.
I never understood the appeal of Adam koralik. His videos are just him plopping some game consoles or accessories on a table and then relating only the most basic information about them. It's show and tell but at least in many videos, the item isn't unusual or rare and the description isn't anything you wouldn't know from basic use or a quick Google search.