I have the following systems:
- Kiwi Gameboy Color (What started it all for me)
- Platinum Gameboy Advance
- Glacier Gameboy Advance
- Spice Orange Gameboy Advance (Japan-only color)
- Spice Orange Gamecube (Regionalized to NTSC-U [by swapping motherboards] DOL-001 model with Component Cable & matching Gameboy Player)
- Platinum Gamecube (DOL-101 model)
- Indigo Gamecube (DOL-001 model, for parts)
- Black Gamecube (DOL-001 model, for parts)
- White Wii (Slightly improved launch version with official component cable [Nintendo improved the console build quality around 2007])
- DS Phat (launch model)
- White DSi
- Red 3DS
Planning on getting Red New 3DS sometime in the near future as well.

I repair and modify Gamecubes for my friends (& for myself if anything breaks on mine) so that is why I have extras for parts. xD