Depends on the market. For desktops, your right. But Apple holds very large shares of the tablet, portable music, and smartphone markets.
Since Apple has surpassed Msoft in the Rat Race, I hope everyone here can manage to switch their perceptions of each enterprise. I hate to do it but I am about to quote Ballmer when I say that, "Apple has a lot of MARGIN built into their products," and as a personal vendetta (Engineering student) I despise Apple and their exclusivity clauses that are within the fine print of their license agreements when purchasing/downloading one of their products (Certainly a JOBS machination)
Anywho, Msoft is attempting a rebuttal w/WinPhone7, etc. I haven't had the displeasure to join in with the "smartphone" crowd yet so I do not know the status of the battle between OS's is going. That is all for now.