Late model Ford F-150 mirror cost?

I was at the car wash this morning and the machine took off my passenger side mirror. I immediately called the automatic car wash number but they did not answer. I then called my body shop and they said that mirrors for 2004-14 F150s cost around 700! To replace! Is this a resonable price?

Considering that they have both motorized components *and* a built-in turn signal, this doesn't sound too far off the mark.