Data Hoarder
We are digital librarians. Among us are represented the various reasons to keep data -- legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Time (tm) ). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.
I didn't make anything in my hoard so I wouldn't charge anything for it. May I give parts out? Sure. But I wouldn't charge a cent as all I did was gather it, intellectually did nothing to create it. Not mine to sell.
As I gave me answer I'll add to this. You say "Gaming repair" is this old arcade cabinets?
You can buy 5tb arcade rom drives loaded up on amazon, ebay, aliexpress and other places for under $200. I wouldn't recommend selling or even sharing your files for free for legal reasons.
If you worked at a video store and manually uploaded all the blu-rays to your computer, do you think it would be a good idea to sell all those files to someone? Obviously, that's illegal af. You are talking about doing the exact same thing.
Fuck the haters. Sell your hoard for a pretty penny and retire to a fucking beach somewhere.