Plantronics MX150 Headset

My wife has been a "proud" owner of half a dozen of Plantronics headsets over the years and two things kept happening: she liked the headset; the headset broke after a few months of normal wear.

The design of the Plantronics MX150 Headset is great. The size works for both men and women: small enough to fit into jean's pocket or a tiny purse. The sounds quality is quite good. My wife wears glasses and she likes the way the headset's "FlexGrip" ( or "rubber foot", as another reviewer called it) hooks under the ear.

The only real question is - how long will this headset last?

(Update from March 16, 2008)
Ok, so it broke today, after about 4 months of use. I already ordered a new one... (they are cheap!)