Let me look into this for you. It shouldn't be $10 above market price, it looks like a simple mistake by our web team! I'll get this corrected right away.
Give my CS team a call and they'll get you squared away! Our Mustang Experts are here Monday-Friday from 9AM-9PM EST and Saturdays from 9AM-5:30PM EST. If you want to hit them up, their number is 866.727.1266.