I don't have one, but they don't bother me. I don't talk on my cell often, but if I did, I would get the BT headset. Just makes since to me... Why hold it to your ear if you don't need to? Why not keep it on your ear all the time for when a call comes in (better than having to put it on at the last minute).

I don't think most people (who use them) do it because they think it's cool, I think they do it because it's convenient. When pagers first came out I think people thought it was cool to wear on your belt - same thing with cell phones when they first came out. Now I think cell phones are just practical and so is the BT.