I could probably sell my Gameboy on eBay for 5 bucks...

I got a wii that i could probably sell for about $275-300 on ebay.

I have no idea... I never really went out to see how much my stuff is worth.

I have the Zelda compilations game that was only sold as a packin with Gamecube. It makes buying them on VC kinda stupid.

I do not know the worth, but I pretty much have everthing I ever owned for the Atari 2600, including cartdrige boxes, instructions, catalogues. I have all the Atari trinkets i acquired from the time, including game pencils, key chains, etc. I also have every edition of the Atari fan club magazine "Atari Age". It is probably all worthless, but I love to look at it all every now and then and reminisce.

oleco original working... no idea how much is it worth but who cares is not for sale

I have the Tengen Tetris for NES mint-in-box, Swordquest Waterworld for the Atari 2600 complete in box, and a Dukes of Hazzard prototype for the Atari 2600 (game never released but the proto is fairly common as such things go.) I have Captain Novolin (the insulin education game) complete in box for the Super NES. For the sake of random weirdness I have a Metroid NES cartridge that actually contains Jaleco's City Connection. None of them qualifies as a nest egg treasure, but I'm glad to have them.