You've just cited the reason I will NEVER go to a dealer for service. Countless friends & relatives have related negative dealership experiences to me over the years, including my adult children. The overall consensus has been that to dealerships, there is no such thing as a simple repair - only opportunities to find/create reasons for even more repair. Granted, that attitude is not uncommon in some independent repair shops as well... but dealerships are better at it, especially when they can use the car warranty to twist your arm.