My setup looks downright meager compared to most of you. Beloved 24" Sony Trinitron CRT, Gamecube with about 8 games, and tiny amount of GB/GBC/GBA stuff not pictured.
Boxed games. IIRC I'm at slightly over 50 right now. Most are complete but a few are missing manuals. Just snagged a raggedy Raid on Bungeling Bay this weekend and a pristine empty box/manual for the copy of Airwolf... that I only realized I'd sold recently after I got home. D'oh! The complete Dragon Warrior NES set is the real crown here. If I absolutely had to stop collecting for some reason I could be content knowing that I have that.
Loose carts from bottom to top. The nicer cart-only games are all in clamshells on the funky looking shelf up top. Didn't take a picture because the titles are not terribly visible through the cases. Most are from when I cleaned out most of the stock of my favorite video game store when they ditched their NES stuff in the mid 90s. Most of those were $4.95. Except Dragon Warrior IV. Even back then they knew that one'd be worth something someday, so that was $5.95.
Miscellaneous SNES stuff. Turrican and Vanilla Street Fighter II are just empty cases.
And the Mother load. 90% of my little SNES collection (only about 50-ish games) is from my childhood.
And also...
...SEGA!