Hi. I plan on selling my Bose Mobile Over-The-Ear Headphones and buying a noise canceling pair (the bus noise is driving me crazy). Don't flame me but I really don't listen to much music. These headphones will be used for listening to audiobooks and watching movies and maybe the occasional song or two. Here are the questions: 1: How much do you think I can get for these headphones. They look absolutely new and have the case but not the Mobile wire. I replaced it with a cheapy Belkin Extender. 2: Would you consider Beats by Dr. Dre for me? Comfort and noise canceling are my big deals. 3: Will the sound quality of The Quiet Comfort 3, match or exceed my Bose on Ear ones? 4: Any additional comments?