Many users would be happier with technologies different from the ones endorsed by their managers (frequently after vendor-paid trips to vendor-sponsored events) and anointed as corporate standards that one should not break if one really likes his/her job.
My wife had to build an intranet on top of Sharepoint because a PHB said so. I have to read my e-mails off an Exchange server because corporate IT finds it nice. Far too many servers are Red Hat while I would prefer Debian (I am a fan of APT). Perhaps you have to make your presentations on PowerPoint for Mac, even knowing how much better they would look with Keynote. Life's not perfect.
And, while I love the NeXT side of OSX, I find the Unix side far too early 90's for my taste ;-)
Well -- I for one am happy with the licensing status of Mac OS X, and think I've received a perfectly fair trade.