Can't say that I rival that. I'd love to build up my collection someday, but for now I've got:

An NES and over 80 games. A SNES. An N64. A Super Game Boy (still counts), though missing some of the cool gb games I used to own. A Turbo Graphix 16. A Wii. A PS2. A PS3. A DS Lite. And a Wii U.

Nintendo: Gameboy, Gameboy Color,N64, GameCube, Wii, DS, Advance SP
Sega: Genesis, Sega CD, 32X, Saturn, Nomad, GameGear
Sony: PS1, PS2, PS3, PSP, Vita
Microsoft: Xbox, Xbox 360
and PC ofcourse
So 20, can't beat you OP :/

I have 3 consoles (ps2, ps3, psp) - try to beat that, I dare you!

3 PS1's, 5 PS2's, 4 PS3's, a PSP3000, Vita, and a Playstation pocket. My PlayStation's are Mixed colors and various Models.

Today i have
PS3, Nintendo Wii, Ps Vita, Nintendo 3ds

Consoles i have sold
Sega Mega Drive, PSP,PS one, PS2

Atari2600 wood back with the 6 switches.

Nintendo:
----------
NES
NES Toploader
SNES x 2
N64 x 4
Gamecube x 1
Wii x 2
Wii U
Gameboy
Gameboy Colour
DS Lite x 2
DS XL x 1
3DS Lite x 2


SEGA:
------
Megadrive
Megadrive 2

SONY
------
PS1 Original x 5
PS2 Phat
PS2 Slim
PS3 Phat
PSP

Microsoft
---------
XBOX
XBOX 360 Elite

Currently down to these (gonna buy replacements soon for those that passed on)

Atari VCS.
SEGA Master System
NES.
SEGA Megadrive.
SNES.
GB.
GBC.
SEGA Saturn.
Gamecube.
PS2.
Xbox.
DS.
360.
PS3.
3DS.

PS2
PSP
PS3x3
PSVita
Xbox360s

Not that many... Only one of the PS3s is really mine, I did have a PS1 and some extra PS2s, but they have all gone

my lord.. some of you have too many consoles tbh!! just WOW

i only have: PS3 Phat, PS Vita (White), PSP 3000, PS2 Slim and NES

used to have: PS2 Phat, PS1.

Mine: Master System II, Mega Drive, Dreamcast, PS2.

Shared: Saturn, PS1, Wii.