Argh... so many headphones. I hope this is not as treble-happy as the t50p 
I watched that video with the Beyerdynamic rep three times. Every time he said "really pure" sound, I cringed, fearing the worst. Still, I couldn't resist the $199 deal.
Which reminds me of a funny event - about 15 years ago in Akron Ohio the police set up a sting operation for stolen goods, and they arrested several people. One of the guys they pinched had been there before, so the cops asked him "Didn't you know this was a sting?" And he replied "Yes, but I couldn't resist the prices."
And that's the way I feel sometimes when something "really new" comes along. But who knows, I might get lucky....