There are several reasons for this explosion. Firstly, there was no competitor for the game, when NBA Elite 11 was canceled, and Sony stopped publishing their NBA: The Life series on the PlayStation 3.
Secondly, this year featured NBA legend Michael Jordan on the cover, with a special Michael Jordan career mode in which gamers could experience the player's career from his rookie years to his (second) retirement.
2K Sports is also dropping the price of NBA 2K11 across five platforms. The title is now available on Xbox 360, PlayStation3, and Wii for $39.99, and on PSP and Windows PC for $19.99.
Let us know if you've enjoyed NBA 2K11.