I bought 3 DS's and 1 DS Lite. I gifted one DS and sold one DS. I kept one of each.

I have 2 NES's, 2 Game Boys, 2 SNES's, and 2 N64's. I don't even remember how it happened. People just give me their old systems because they know I'm a safe home for them. They're my babies now.

No I do not see the point of owning two of the same console.

I have two DS, two Neo Geo Pocket color, two GBA, two Nintendo Wii.

I bought them because I wanted them. They are all American consoles.

I had 3 PS2s, though only 2 at one time, and only 1 fully working one at a time
I have had 3 PS3s, though only 1 at one time
I have had 2 PSPs, though I only had 2 for one day

I've had:

4 SNES
2: Atari's
2: PS3's
3: PS3's

Megadrive 4
2 mg1 and 2 mg11, lost over the years so you get a new one for old times sake.

Mastersystem 2
old and newer versions

Sness 3
Pal version. American with wild card and roms. Lost consoles over years so brought a one last year pal version

PS1 7= neva knew i have got through that many lol
Launch console got stolen.
another ps1 broke by older bro.
Got another one, Dont know what happened to it, lost whilst moving or something like that
ps1slim came out but got stolen.
ps1slim again.
Chipped ps1 with lots of games.
Chipped ps1slim

PS2 Dont now its all one big blur, at least 3

Systems I've owned more than once:
2 of the NES - My first one lasted 1986-2006, RIP
A JSNES in addition to my own original
A Game Boy Pocket and Game Boy Color in addition to my original
PSOne in addition to an original I shared with my brother
DS and DS Lite (gave the original DS to my brother)
360: Preordered it but decided to flip it on eBay when I saw what they were going for
And my little secret

3 PSOnes
2 Sega Saturns

Also I remember having 2 Megadrives in different times.