Perhaps you should tell that to Apple - they seam to be targeting the enterprise content creation markets with some of their high end kit and the what is lights out management market with their xserve and OSX server.
They do not "pursue" it, but they do not ignore it. Last I heard, though, they only have 11 sales people concentrating on enterprise. As I said, the enterprise portion of Apple's business is growing as well... faster than the PC market in general.