This is a nice auction for a complete licensed NES set. The Stadium Events is PAL however, but still it’s not a collection to be scoffed at. Looks to be some hardware, some unlicensed stuff, at least one homebrew and some boxes / manuals as well. From my understanding though, a complete licensed set is 677 titles, not 678 as he states.
Side note: What song is in this video? It’s awesome. (The first, not Heaven on Earth)