It could be ...
...computer illiterate PC "techs" who know very little else.
I have multiple CNE\CNA quallies, a couple of MCSE quallies and am now going the Linux route. I have built several PCs (all SUSE) for friends who are very happy. They too see the irony that you mentioned above. And now that you can get a refund form DELL for the MS "tax" a Dell PC gets even cheaper - although all the machines I have done so far have been custom built by another shop for me. One couple who have a SUSE machine love the fact that they are runnig Linux. For a fairly computer illiterate couple they had heard of Linux and think that they are now cool in having it at home. They are not young - both in their fifties. Smashing