Most likely they put more money into the marketing department than into developing new and better products. Probably typical business practice these days....and a lot easier...but this one seems really lame on AKG's part.
It's not that old, and who said new is better? I do agree that the Q line is just a reason to get more money out of people with limited effort. AKG needs to spending the resources to produce something totally new rather then using the resources to rebrand headphones (in icky colors). [Something totally new, but something that is better than their usual new stuff].