I went to a pro studio in my town, and the engineer there was using Sennheiser HD 650's, but had some 280's also. I personally own the 280's and while they're definitley not the best cans on the market, they work.
Music is an expression of our emotions. It is one of the most important parts of our lives. The job of an engineer is to capture this expression and present it to an audience in a way that accurately represents the intentions of the musician.