I think their IE's are really pretty nice. They're not IEM's, but rather canal phones, so they don't block out much of the outside noise. If one doesn't need the isolation, and is willing to use an amp (they do need it), it offers a very warm, relaxed and fatigue-free sound. They're not something that grabs your attention at first listen, but with prolonged listening sessions, you realize how nice they actually are.
And comfort...man, I know of no other IEM, canal phone, earbud that's more comfortable than the Bose IE. You can wear it for hours and not even notice they're on your ears.
The only drawback, and it was a big enough drawback that I ended up giving mine to my daughter, is that the earpads fall off the stem on a pretty regular basis. The mediums fit my ears fine, but they sounded much better, with fuller bass and soundstage, with the larges. And, by using the larges, placing them into and out of my ear wasn't as easy as with the mediums.
They truly became a pain in the butt. If not for that, though, I'd still have them.
So basically, I think they're worth the asking price. You should hear them for yourself, properly amped, and not rely so much on all the Bose-bashing folks. Let "your" ears decide. You might like them; you might not. You won't know until you try.