I had a matte and went glossy, and I really noticed how much easier the glossy is to clean. There is no "lip" at the edge of the screen for liquids to fall into, so you can be a lot less discerning with how you clean. Plus the screen is glass, so it is actually more difficult to scratch. With my matte screen, dust would blow behind the screen, through the gap, and get lodged there permanently. Larger objects like pet hairs and dirt would get wedged into the gap, holding it open and making it larger. Retrieving them was difficult without risking scratching the matte finish. Also, it was much harder to get fingerprints and general goop off of the matte screen because its texture tends to "grab" the stains, and if you scrub too hard you risk scratching it.
I might take matte over glossy if it stayed the way it looks in the store, but I think it takes much more care and effort to keep the matte looking like new. Nothing sticks to it, and I'll take reflections over weird stains any day.