The glowing logo was one of the little finished touches that made a Mac different. I loved and now miss those small features like the glowing sleep light that was dropped years go (and have had my MBP not in full sleep in the bag - this could have been avoided with that sleep light). I get that some people don't like it, but being a long time Mac user, I'm not seeing much difference between a mac and those "beige" boxes apple used to poke fun of. They're just as beige now
I think it was a good idea at first, but it didn't look very professional and it wasn't exactly subtle. Apple have made the MacBook look far more refined and professional by getting rid of it, along with that annoying start-up sound which should never have been present in the first place.