The traditional break-fix model means we, the consultants, get paid when things break. The more breakage, the more money we make. This model seems all wrong.
Why don't we turn this around to where your IT provider is vested in things not breaking, in being preemptive? Now not breaking is a win-win for the customer and the provider - seems like a better model.
Billing as flat and level as you want, outsourced headaches, leveraging cloud functionality - solutions that just work.