perhapss
Headphoneus Supremus
True. There's definitely a far greater gap in price between top line and mids like 650 and 880 than in sound quality.
I actually think the 880 is underestimated. My phones are slightly modified in having a layer of flannalette placed in the cups (made a huge difference, no idea why), and I'm using a Beyer A1 clone, and the sound on classical is positively concert hall; I've given up my ambitions of moving to T1 etc. I don't think the true potential of the 880 has been fully explored yet.
I enjoy my dt880 a good bit more than I enjoyed my t1 (which i owned for 3 years) for classical music.
Incidentally classical music is mostly what I listen to.
My 2 cents.