Amazon do this all the time. The VMODA M100 in black was once £100 cheaper then the other colours. When items start selling, Amazon bump the price back up.
I wonder if the Q701 is going to be discontinued :S With all these prices going down minus the Green it seems like it may.
So basically if that happens then AKG have their K812 for their main flagship then their K712 for their cheaper flagship and the K612 for their budget headphone so the 702 and both 701s may be discontinued? since they have all gone through a dramatic price reduction.
It would make sense because the 712 is the most refined model that does everything the others can do.
The Annie has been discontinued but they where limited