You could look at this as "CPUs are cheap, of course we can afford to leave them idle." But a more interesting angle is, "For one programmer's hourly cost, you could run 4000 CPU cores continuously. Can there really be no practical way to apply thousands of cores to boosting the programmer's productivity? What are we missing?"
For instance, couldn't https://github.com/webyrd/Barliman develop into something that makes computing worth spending on at that level?