The results aren't really surprising at all. There were at least 50m PS2's sold in the Americas. Wii + X360 + PS3 ~= 43m units. So obviously not all PS2 owners have "upgraded" to a next generation console. Also, people still own games for their PS2, and good games were coming out up until Christmas.
I would still be using my GC if it wasn't for the fact that my Wii can play all the GC games, and I would be buying PS2 games, if my PS2 worked, or my PS3 played PS2 games. Factor in that this new generation is the most expensive ever (in terms of numbers, but with inflation accounted for isn't so bad) and I'm sure there are lots of happy PS2 owners who won't be upgrading for the next 2 years, if ever.








