Far sightedness VS near sightedness also plays a key role in how well you ca fully enjoy your screens, be it glossy or antiglare my near sighted eyes enjoys both, but I personally love glossy screens because they are gorgeous and easier to keep clean!
From personal experience, even with 2 weeks of dedicated work on the retina machine (before throwing it back into apple's face), next to my 2007 and 2011 17" anti glare, reading and viewing images etc, there was definite difference between the 2007 and the retina machine but not that - that much even, but between the 2011 and retina, hardly and difference to my eyes. Only the gorgeous screen, regardless if it was retina, that screen is just candy!
When I am at my "desk" I have three 27" TB displays. It boils down to preference but I love the retina's screen, I wont ever like 15 inches but I do love the look of the screen all that technology behind it. I wouldn't have minded it if it was just as glossy as the current line, doesn't bother me any because I am always in situations where I have complete control over ambient lighting and would NEVER be stupid and use it outdoors ever.