A couple of years ago, I seem to recall the HD 650's selling on Amazon for about 300-400 new. Today, they're at 500 new. Are their prices going up despite their age?
Obviously this is speculative, but when do you guys anticipate their prices will start going down?
Suppose if I find the treble of the HD 650 a tad underwhelming, do you think it's worth keeping them just as a collector's piece? Are they worth keeping around because of their history/notoriety?