well yes, but an MX aint $400 ... I mean, you can say whatever you want, but ATI nor nVidia actually overcharge u on their budget products eh, you always get what u pay for, pay less, get less, this card is pay more, get less...
I think it all comes down to experience, ATI and nVidia have such a big R&D department and a long history of cards, they know what works and what doesnt, and even when they fuckup (NV30 and NV35) it's not major (within 10% from ATI). a newcomer to the market shouldnt even try to aim for top performance, because it is unnatainable, which the volari proves, the card couldnt beat a kid with a pencil in FPS nor image quality.