This only confirms the trend of the generation: it takes about a year for any system to start to make headway against it's predecessor. It's been true of all of the hardware launches thusfar.
To give you an idea, the 3DS has been outrageously successful over the past year and a half and it holds 9. Meanwhile the PS3 and 360 hold FIFTEEN and FOURTEEN respectively. The top 50 part of the chart naturally favors mid-to-late life console because people on the one end of the spectrum people who have just spent money don't immediately have that much disposable income left. On the other side, you've got buying games for old systems that look antiquated. Hardware that's too old doesn't sell games, but if it's too new it doesn't work, either.
The greatest sales always come on the back end of the middle of a console's life.







