Comparing Nikon's $8000 24.5MP D3x to Sony's $3000 24.6MP a900 is bit of an apples and oranges comparison, even though both mega image sensors are in fact made by Sony.
For one, the D3x is intended as a studio camera (though it really is a just a D3 with a different sensor), not so much a cheaper pro like the a900, which seemed to deliver less-than-stellar images to boot. So megapixels ain't everything. Even so, $8000 is a whole lotta cash, especially when you consider what Canon gives you for just $2700, if you can actually get your hands on one. [Crave]