I bring my car in for its routine oil changes and service when its recommended with the hopes that when warranty claims come up I can bring my car to them and they will see that I am a loyal customer and may be more inclined to help out. I could easily change my own oil and rotate my own tires, but I also think it helps when possibly selling your car or trading it in to have proof of dealership/ professionally serviced vehicle.
I brought my car in for its 10,000 mile service and oil change a couple moths ago.
BTW what does BG stand for? I've been up since 4:00 this morning so maybe I'm just missing something, haha.