That's a matter of opinion. I prefer anti-glare, but many prefer glossy. The opinions are split roughly 50/50, if the hundreds of existing threads on this topic are any indication.
I have a 2.6ghz rMBP and 2 other 2011 MBPs and I can say that glare is much less on the rMBP. Don't get me wrong it is still there depending on the ambient lighting and the reflective light source but it is significantly less than previous generations of MBPs.
As for the high-res anti-glare. I love the concept of anti-glare and when it's well done I think it works well but I never liked the smudged look of text that you get from them. Just a personal thing.
Store lighting is not a representation of your own work/home environment. I can make the MBPR look like a mirror by using extreme (read: non-typical) view angles and then claim it's too glossy.