Hey, I have all the Collector's Editions as well... I like the mousepads as well, but I don't use them. They just sit in the set boxes on top of the collectibles hutch in the living room, guarded by the megablok Deathwing and Sindragosa.
My main point is that Blizzard can and does change their direction at times and people get so hung up on "But But they do it THIS way!". The last expansion release cycle should have shown this, they did so many things different than before and people STILL hold to the "old ways".