It's not helpful trying to play No True Scotsman by defining “real creative” as “what we do”. Anyone with more than cursory exposure to printing, video, photography, etc. knows that there's a sizable percentage of people who vocally prefer Macs – certainly not everyone, but far, far too many to pretend that a claim like “never preferred” is anything other than fanboy hyperbole.
As an aside, what do you mean by “calibrate a monitor”? ColorSync arrived in 1993.