Off the top of my head, that can be found between $100-$270 based on sales if you look hard enough (ie about the amount you'd have to wait for the K7XX to be on drop at any particular point): AKG K141, K701, K702, K712, K612, Q701; Sennheiser HD558, HD598, HD580, HD600; Phillips L2, X1, X2; HiFiMan HE400, HE400s, HE400i; SoundMAGIC HP200; Beyerdynamic DT440, DT990, DT990Pro, DT880; Samson SR850; Grado SR125e, SR225e, SR325e; Telefunken Aqusta;...