Availability check: The DirectX 10 generation

How has the arrival of new DirectX 11 graphics cards affected the previous generation? Are old favorites still widely available at their former prices, or have things changed? To answer those questions, we probed the U.S. and Canadian availability of four cards that previously defined the $150-250 space: the Radeon HD 4870, GeForce GTX 260 reloaded, Radeon HD 4890, and GeForce GTX 275.

http://techreport.com/discussions.x/18168