I tried to convince myself to get the dealer to do it. I tried to convince myself that for a couple bucks, may as well have someone else do it.
... Except dealers overcharge for synthetic, just because. Then they charge $20 to rotate the wheels. At the end of the day, I pay $70 for something I can do myself for under $30. Money aside, I don't mistreat my car and everything stays nice. I've seen pinch-welds completely ripped apart due to dealers not caring one bit about your car.
Mechanical sympathy. Be one with the car. Treat it well, and it will treat you well. Be aware of you car; see things for yourself.