How many high end shows or high end shops for that matter use ANY pro type equipment? Zero is the magic number. How many high end magazine reviewers like Stereophile's staff own any pro gear, zero. Check it out for yourself in the associated equipement in their reviews.
Why, because pro amps are switching amps which are noise generators. No true high end system flaunts any Crown amps. Or any other class D amps for the same reason.
Why again, class A is the best form of amplification period.
cityjim