Game systems do you have other than the 3ds?
I have 7 all together lol we are a gaming household here
xbox360,xbox1,ps4,Wii,wi U, 3ds,3dsxl. Yup we have it all ha ha

We have...
1 tower computer (built to play Diablo 3 specifically)
1 laptop computer (built to play star wars online.)
1 wii
1 dsi xl
3 3ds XL
1 playstation 2

Before our house burnt down in 2010 I had
2 game boy originals
1 game boy micro
2 game boy advances
1 game boy advance sp
2 game boy colors
2 original nes
1 super nes
1 nintendo 64
1 original Atari
3 Playstation 2s
1 wii
1 nintendo GameCube
1 Nintendo ds
1 Nintendo dsi
1 Nintendo dsi xl

I always keep my gaming systems since I was a child, I'm forty now.

I just couldn't bring myself to recollect them after the fire.  

I also had all the Harvest Moon, Final Fantasy, Dragon Quest, Animal Crossing, Rune Factory, and Zelda games and stragety guides. We had all but 10 of the Atari games and over 500 games between the other consoles.  Looking back now it's kinda funny (and sad) I had two 5 shelf bookcases full of games and 1 for just the guides.  My husband thought I was crazy but then I would point out how much he had in music CDs and we were even.

I even got him into playing video games now, mainly Diablo and forgotten realms (ps2 games).

We're a gaming family now!

Even got my nieces addicted to Harvest Moon and Animal Crossing

I'm the cool Aunty

Yeah we have a desk top and lap top as well as three tablets. I am also the cool aunt and parent every kid likes our house

Desktops
Laptops
3DS XL
DS Lite
Playstation
Playstation 2
Wii
Nintendo 64
Gamecube
Gameboy Color

I think that's it..

NES
Super NES
Game Cube
Nintendo 64
Xbox
Xbox 360
Gameboy
5 ds3 xl
2 ds3 ll
2 ds2
Playstation 2 & 3
Wii
WiiU
Cennepede, Pacman, Space Invaders, anything from the 80's. Lol

PSP
Gameboy
GBC
GBA
GBA SP
DS
DS Lite
DSi
3DS
3DS XL
NES
GameCube
Wii
Wii U
Genesis
Dreamcast

When my mom came to visit, she dropped off all the systems we had growing up. My collection makes me look like a hoarder. These are the working systems.
Super Pong Ten Atari (the actual pong system)
Atari 2600 (2)
TurboGraphix 16 (1)
NES (3)
SNES (3)
SNES v2 (aka slim) (1)
N64 (3)
NGC (2)
Wii (1)
Wii U (1)
GameBoy (2)
GameBoy Pocket (1)
GBC (1)
GBA (3)
GBA SP (1)
GBA Micro (1)
DS (1)
3DS (1)
New 3DS (1)
PS1 (2)
PS1 Slim (1)
PS2 (1)
PS2 Slim (1)
PS3 (1)
PS4 (1)
PSP 1000 (2)
PSP 2000 (1)
PS Vita (1)
Sega Genesis v1 (2)
Sega Genisis v2 (2)
Sega Saturn (1)
Sega Dreamcast (1)
Xbox (4) - got into softmodding for a bit
Xbox 360 (1)
Galaxian Arcade Machine
PC if that counts
I do a lot of fixing/repairing of systems on the side as well. Garage sales are your best friend people!

Wii, 2DS and Gameboy Advance SP.

I have a pc,3ds xl and 2 ps4's.And soon i will have the nintendo switch when it comes out in March 2017!!!

This is what we have:

Gameboy
DS Lite (2)
3DS (2)
NES
SNES
Nintendo 64
Wii
Wii U
Playstation 2
Desktop (3)

I regret getting rid of our Gamecube, but we did it since Wii could also play the games. I also regret getting rid of my GBA that was pink. For the most part, though, we've stuck with Nintendo. We've bought and sold other systems, but still play most Nintendo games.

I have 2 3DS's, a laptop, an iPad, and a Xbox one.

I used to have 3 3DS's, until I accidentally melted one

How do you accidentally melt a 3DS?