[LeifCarrotson]

It's not about whether you've made more revenue/profit than the cost of the equipment. It's about whether you've made more than you would have with a competing option - a HEDT Linux or Windows workstation, plus an old Mac Mini build server if your business absolutely needs to run xCode.

[paulcole]

If you’re talking about revenue which is likely well into 6 figures for a random developer working for multiple years then the price difference between a Mac and another workstation is all but a rounding error.