Had an emergency and ended up taking our car to the dealer instead of waiting for the local mechanic we often use to be available.
I could find the genuine oem parts we needed online at multiple sites - all within $30-$40 of each other - that cost 70% less than what the dealer charged us. They mark up parts and labor both - I'm not sure why they feel it's necessary to bend people over like that, but I won't ever go back.