Get what YOU want. If your concerned with eye strain and I have and do work with 2 different versions of LCD's (glossy and matte) then maybe matte would be for you. Glossy to me makes all the colors really pop. Some people say matte makes the colors pop, to me it makes them more dull.
You looked at the 2 screens, pick the one you feel comfortable with. The above example about colors shows that different people see things differently. You need to probably go back and look at the 2 different screens and YOU pick. Run through one for about 20 mins, take a break, goto the food court, then come back and do the next for 20 mins and make a decision.
In that 20 mins do things you would probably do daily, surf a few web pages and hit equal amounts of primary text based sites and image intensive sites. Open up some of the other apps for a few, and just work through the apps.
In other words, give your eyes a good 20 min workout on each type of screen.
Doing this will help you figure out if glossy will or will not make YOUR eyes strain or if matte will. Everyone's eyes tolerate things differently, your spending the money not the Apple rep and certainly not us.
That's the best advice/suggestion I can give. See what your eyes can tolerate.
Piggy-backing on the above example I gave, I prefer to do my web graphics at home on my glossy because I think the color representation is better and more accurate. When I do them on my matte screen in my office it appears my colors are off. 3 people in my office agree, and 2 disagree. 2 say the matte gives better color representation. I don't get eye strain with my glossy but my wife can't stand my screen. Again, the point is, different eyes tolerate differently, it's not something that's worth debating the difference between glossy and matte, it boils down to what's good for YOUR eyes.