Could you share a bit about what you’re working on or what type of projects require that much usage? Is it hobby, production, revenue generating?
What multiplies it very quickly is when you start feeding them with test suites and "Ralph loops" that run until the test suites pass, or complex chains with lots of sub-agents being triggered.
If you're sitting there watching everything, it will be hard to burn all that much even if you're running multiple things in paralle.
I get more enjoyment and better results when the coding process is me and the agent working through a plan, at each step sparring over what to do next and how. Then I also catch the bad decisions before they manifest in the code.