Did it still have the "new game" smell? Call me weird, but I've always liked the smell of freshly opened electronics, video games, etc. (especially NES games).
I like how the box says "NEW" on it.
My collection isn't necessarily vast, but it includes one 6-switch woodgrain 2600 (the original 2600), one woodgrain IntelliVision, one Vectrex (seen those?

), one original GameBoy, one SNES, one GameBoy Advance SP, one GameCube, and many games for each. I also have one of those (unlicensed) NES clone lightgun battery powered units with A/V connection and ~40 or so games built in, the Namco arcade classics similar unit (I think 4 games), and the Atari classics one released this past year (about 20 games).