If it were unimportant mechanical parts like a lift struts for the hatch, I would not hesitate to use aftermarket if the price discrepancy was that great.I ran into the same OEM part issue with my wifes Toyota. The lift struts for the hatch went bye bye. Went to the dealership and the dealership said, $200.00 dollars each please. I said I didn't want to buy the company just some of their parts. He apologized and acknowledged the price was crazy stupid, but watcha gonna do. I went to the after market parts supplier I use and purchased Monroe struts for $29.99 ea. Made in China of course but warranty was the same as OEM from the dealership.