Me too, but Pro900 is a must have for bass head or for gaming/movie fans. I use it principally for movies and gaming and its excellent.
Pro900 is much more detailled than dt770, but also more clinical. Finally pro900 is technically far superior than dt770 imo, after its subjective.
D2K is not better, just different, a much more all rounder headphone, Pro900 is really limited to certains songs. In europe, pro900 is also less expensive than D2K :) (generally 470 € for D2K and 390 € for pro900). All Denon gear are always overpriced in europe :( We have good price with sennheiser/ultrasone/Beyer/AKG... but Denon and audio technica its an other story.
Pro2900 for example, is technically at the same level than pro900, but i like it much more than D2K (i prefer D2K to pro900).