It probably also depends where you are. Leaf collection can keep your accounts going as scheduled for over a month in the Northwest. In many scenarios you'll make more by continuing to make scheduled visits and taking care of leaves instead of the turf. Depends on disposal as well, which for me would be free.
You should just do what ya do, if it is working. It doesn't matter that you are offering a better deal then the other LCOs. Thats what being competitive is.