I bought a 5200 on ebay back in 2004. (for $35.) I knew the controllers didn't work, but I still wanted to see the games. Turns out the weird switch-box didn't work either, so the damn thing wouldn't come on. That was the only time I gave an ebay seller an "intermediate" rating (or whatever).
Eventually I had to just chuck the damn thing, in 2017. It came with four games that I gave to the Goodwill.