I had the Donkey Kong board game. Boy, was that neat. At least, I seem to recall liking those cute tiny plastic barrels.
I have a few Game & Watches, and I got the Boxing and Zelda G&Ws in really good condition in like the mid-90s in an electronics store. I was surprised.
I'm contemplating whether or not I should get the Legend Of Zelda cartoon and Super Mario Bros. Super Show DVDs, even though I heard the Zelda one is pretty bad. But I liked the cartoons for the cheese factor, so if it at least has all of them it may be worth it.
As such a Zelda fan, though, should I at least try to find the CD-i games, though? o_0