Certainly a $200 VESA mount is a pretty generous markup, but did anyone not expect this?
Well, its more than twice the cost of the iMac Pro VESA adapter - it's not that anybody doesn't expect Apple to be expensive, its that they're getting
worse.
Also - although 4 bolt holes would look fugly in the back of the space-age streamlined iMac, they'd blend in perfectly with the new "industrial" look of the Mac Pro/Pro display (which is its crying out for someone to bolt on a brass pressure gage and centrifugal governor synced to the fan speed...). Absolutely no excuse for not having an integral VESA adapter.
They didn't want some cost cutting LG plastic box that was design agnostic but cost-sensitive. Oh my vapors... that forehead Ay!
Well... the best I can say about that 'forehead' is that it doesn't stop the display from working - that doesn't make it good. When a large part of your target audience are graphic designers and artists then - news at 11! - aesthetics will be relevant... but a nice aluminium enclosure and black glass front would have sufficed, they didn't have to go all steampunk on us (when I'm fitting out my vacuum Zeppelin I'll know what computer to get).
Actually, my conspiracy theory about the LG 5k display is that it was
supposed to be the new Apple TB display - with a metal case and glass front (extend the bezels slightly to accommodate an iMac-style taper, stick a sheet of black glass over the front and the 'forehead' vanishes - put a metal case on it and those pesky E/M interference problems from the early versions vanish, too. Look at the placement of the ports, the lack of additional video inputs - just like the iMac/TB display and very unlike LG).
As for the prices - the crafty thing about that keynote is that the products they were extolling the virtue of were
not the products they announced the prices of. The super-nano-whatnot glass on the display is optional, the stand is optional and the base Mac Pro, with a 8 core Xeon is scarcely more powerful than the iMac Pro (which comes with $1000 worth of screen). OK - its a bit difficult to tell when the particular Xeon it uses isn't available yet (but will doubtless be cropping up in Dells and HPs when it is) and I can't find a "Radeon
Pro 580x" card on google - except as the
middle option on the
regular iMac. The only features that really set it apart from any other Xeon tower are the Afterburner ($???) and the Vega II dual-fabric wossname GPU ($if-you-need-to-ask...)