I have a brand new pair of IEMs, in the $400 price point.
I don't believe that I want to keep them, because I don't see myself listening to them all that much. When I'm at my desk, I'm an over-ear listener... and when I'm away from my desk, the thought of losing or breaking a pair of $400 IEMs would cause me to not feel comfortable.
That being said... I'm really curious how they sound. But I don't know whether opening them will decrease the resale price too much.