[kscaldef]

Actually, the article notes that there are aesthetic differences as well. Are those worth $150? No, probably not, but they aren't identical items.

(Also, FWIW, the "$350" headphones are currently $145 on Amazon and the "$200" ones are $85.)

[jrockway]

Makes you wonder what Amazon pays Sennheiser for them. Amazon is not known for their super-low prices, after all.