Using the exhaust brake all the time is a great way to lessen wear and tear on the service brakes and also using the exhaust brake at least one time every time the engine is started will greatly reduce any carbon build up and keep the movement and components from sticking.
I've had my exhaust brake on my truck for around 70,000 miles. I have just over 100,000 miles on my truck and my factory front brakes still have almost 1/2 the pad left. I'm sure my rear drums look like they've just been installed. I use my exhaust brake so much that when I'm in a vehicle without one I find it strange how little resistance there is slowing down.