If you consider buying a high quality display, don't go for apple. That has never been a good choice. There was one advantage once, and it was the hugeness of the 30 inch display. But this advantage has vanished long ago.
About the matte: This discussion will never end as about 50% of the users like them and 50% do NOT like them. I do not like them particularly but the choice to get a matte on a mac laptop is simply ugly. Drawing, Coloring, Imaging as well as coding and writing, I all do on an external matte display not from apple. In the office, we got Eizos for high quality imaging and Samsungs for normal work. More expensive but absolutely worth the price.
To make this clear: When you talk about quality of a display, people still think of brightness (which is mostly useless as displays are used indoor and the eye adapts quickly), contrast (which is why apple goes glossy), color gamut (which does not relly matters much for everyday use) and LED (which is ok). But they often forget about the ergonomical aspects. Don't let you fool by statements like 85% bigger color gamut or contrast ratios of 1:1000000000. Go to a store, look at the display when running and decide if you could work with that after having used it for at least 10 Minutes.
I saw people tilting their screens to the floor to not get the glare, I saw people moving to dark corners in the office to not get the glare, I saw people wiggling their head to see what the display should display and not what it mirrors. Me personally, I use a matte display connected to my Mac and use it as the primary monitor and the glossy as the palette display. Matte is way superior in productivity. The only advantage of glossy is the darker blacks which results in the higher contrast ratios.
Again, If you need a GOOD display, do yourself a favour and do not consider apple.