I have these exact earphones and I remembered buying them for $399 + tax. Today while I was checking, I noticed that they got a price drop. Even though its probably the official price from now on, still seems like a really great deal to me. These are equivalent to Shure 530. Keep in mind that the warranty and customer service are not as good as Shure.
(save tax if you buy from bhphotovideo)
Edit: Apparently they have a new redesigned model for $399. That's why. https://www.westone.com/store/mus...-earphones