Personally I am not concerned what their markup is, the pharma industry markup 97+%, but a cancer patient dosent care as long as it cures his cancer. The issue here is performance versus claims.
We all bought a top end, professional branded product, with a new type of screen that provides good realistic image reproduction, advertised as especially good for graphics work like photographic editing.
Some of the screens (Samsung) meet this claim, many (if not most LG) screens do not. It is not a technology limitation, it is a sub-standard supplier issue and poor QC !!
Having such a variation in a professional product is unacceptable as that is why it carries a premium price. The fact that Apple can't even ensure people who claim get a replacement without the same problem is ridiculous and not what you expect of a 'blue chip' company. It's time their quality department got a rocket up their *** and sorted out this problem, starting with individually testing replacements sent out for customers with this problem to ensure they don't get 2, 3 or I have seen 5 in some cases, with the same problem.
Even worse is their customer complaints dept having no consistent approach for this, and wasting customers time with screensaver advice and other garbage, which the type of people who invest in this cost of high end kit know is ********. I notice there is even a thread in this forum on avoidance of persistence by screensavers and white pictures. That's unreasonable advice for an artist who's work involves having a static image for a long period of time, and the screen shouldn't have a problem with that if it is fit for the stated purpose (and again Samsung's is fit for that purpose proving this is an inconsistent quality issue, not a techical limitation !!)
This thread has over 120,000 views, is being advertised all over the tech review sites. Apple seriously faces losing some of their hard earned credibility as a Quality manufacturer.