I went to a Flea Market looking for a Sega Genesis Model 1 AC adapter. The largest booth dedicated to video games was run by an older gentleman, he had at least 2000 games for sale. There were Atari and ColecoVision games, Master System, 32x, Sega CD, Saturn, Dreamcast, PS1 and the Typical NES, SNES and Genesis fare.
I asked if he had an AC adapter, but he only had them bundled with systems. I thought since he had such a large amount of games for so many different systems I'd try my luck and ask if he had any TG-16 games.
When I said "Do you have any TurboGrafx games?" he said "Huh?" I thought because he was older he might have trouble hearing, so I asked again. He said "TurboGrafx, no, I've never heard of that."
I don't expect resellers to be die-hard enthusiasts, or even to play the games they sell. But it gave me a chuckle that this guy who easily has thousands, probably into the tens of thousands of dollars of video games didn't know what the TurboGrafx was...