C Driver team occasionally receives complaints that our patch builds or waterfall builds are expensive, and we're advised to run fewer variants or less frequent builds. I'm sure these complaints are legitimate, but they're hard to respond to because they're communicated slowly and indirectly via chains of command.
Let's do some social engineering. On each waterfall build or patch build page, display an estimate of the build's cost in dollars. Accuracy is not very important. We'll change our habits promptly.