It is a well established belief amongst us Head-Fi'ers that the HD650/600, K701, DT880 and SA5000 are all at the same level. While I don't want to turn this thread into another Senn vs AKG vs Beyer vs Sony argument (there are plenty out there already), I have to say that the DT880 do seem priced very reasonably. In fact, I would call it a bargain. The Senn, AKG and Sony are much more expensive and have MRSPs of almost double that of the DT880! Also, the supply of DT880 is always there, meaning there aren't the same long waiting lists associated, especially recently, with AKG. I'm still waiting for my K701, which should arrive soon. Whether or not I like the K701, my next pair of cans will probably be the DT880/990. IMO, there is no way of telling which pair is the best or better without listening to them yourself. Therefore, if my wallet allows, I would not hesitate to get a pair of Beyers.