Depends on how much the glare is going to bother you, and where you desk is in relation the lights/windows in your room. I have a 24" ACD with a glass front, luckily the window is behind my desk so glare isn't a problem during the day. At night I have a slight problem with the lamps but after a few days I'm already used to it and don't even notice it. To me the tradeoff is worth it for the way the glass makes the colors pop.
I have never had anything but glass, but I coming from a CRT! Seems like the glass would be more durable and easier to clean. I do understand what you say about glare too.