i can definitely confirm the findings of that study, and so can most computer professionals who have to deal with mac users.

i ran my own computer tech service in las vegas for ten years, and steadfastly refused to service macs, mostly because of apple's proprietary business practices. but i necessarily did have to deal with quite a few mac owners, mainly graphics professionals, and i can testify they definitely live in their own world, which they feel is quite superior to the rest of the computer world.

one reason for this is that apple, from the first, targeted classrooms with their products, from elementary school through college levels, and they became a staple of Academics. so their attitude became that the Mac is the thinking person's computer, hehe.

a standard complaint of businesses for years has been that highschool students in particular graduate with good skills on a Mac, but then have to be totally retrained to operate PC's, which is what businesses use almost exclusively.

i ran a business, and if it had been profitable to service macs, i'd have done it. but Mac parts on the average ran three to four times higher than the same part with a pc interface, and mac owners would typically just say to hell with it.

but their attitude was almost invariably "we're the elite, why can't we get service?" so frankly i didn't mind not having their business.