What's The Soonest You've Ever Bought A Console After Launch? What's The Longest?

[milkyjoe]

Gamecube, Wii and Wii U all bought at launch.

I didn't buy a DS for myself until 2010, but I had used one owned by someone else extensively prior to that.

If that doesn't count then the next longest is the PS3, which was not far from 3 years after launch.