I had it for gamecube. I honestly couldn't tell you what made me decide to get it. I did watch G4 a lot back then so it could have been that. It's odd, I remember everything else. I remember playing it for the first time and setting up my town. I started late at night so after doing all the chores for Nook I couldn't really do anything else. But I have no memory of thinking "Hey, I want that game!"
Other: I think I found Wild World in a catalogue when I was about twelve, haha!
I played wild world like it was religion after my dad got it for me as a gift. We were building our cottage at the time and I used to pretend that my house in wild world was what the cottage may one day look like. I ended up losing it though and I was never really interested in the console versions of the game. A friend had told me that new leaf was coming out for the 3ds, and when I heard that I was sold! It's now one of my most treasured games.