If there isn't much of a difference then why downgrade to a slightly duller screen with slightly worse viewing angles?

I was leaning towards the matte, but I don't have many issues with Apple's version of "Glossy".. Mainly just afraid of sacrificing visibility with the backlight turned down for better battery life. However, the glossy screen is so gorgeous compared to my previous 15" laptop LCD experience that I probably wouldn't turn the backlight down often
How's the visibility in typical office (or weaker) lighting with the backlight at 2/3rds or 1/2 power?
I just tried it directly in front of a bright window, sort of half-sunny inside. You can definitely see a lot of reflections, and at 1/2 brightness they're very noticeable, but at full brightness, while still there, they pose little problem. The backlight level makes a BIG difference to the visibility in "bad" lighting conditions on this screen. It also attracts dust, and shows fingerprints, a bit more. That is the only time I've noticed ANY reflections, and I've been in "typical office lighting" since I got my MBP, in various positions - I even had to check I actually had a glossy screen at times. But, sitting in front of the window (ie. very bright lighting) did confirm this.
I actually like the way the glossy has more reflections, even though it does affect the visibility a bit, I like the shiney-ness and the way the screen looks "alive", but I would assume I'm in the minority there. Most would prefer the extra visibility.
When compared to my Apple TFT Studio Display (not even as good as the Cinema Display), I'd say the glossy makes a slight difference (improvement) in colour/saturation (deeper blacks, crisper whites, SLIGHTLY richer colours).
In all honesty - I would recommend you go for matte. Better visibility in a lot more situations, you can probably have your backlight lower more of the time, saving power/increasing battery life, and the glossy isn't as much of a difference to warrant the inflexibility of having to be careful where you sit, etc.
So, unless you're slightly perverse like me, go for the matte
