[crazygringo]

> Sure, it's probably millions of dollars per year that they're throwing out

The reality of it is probably not, actually. Not when you consider the full cost of running it -- not just the engineers maintaining it, but the extra complexity of perhaps outdated technology (can make it harder for other teams to move forward, to migrate servers, etc.), and especially important the time spent by management in managing its continued existence.

And the management aspect is less about their salaries and more about what more profitable things they're not focusing on instead. You might say "well just hire another manager" but that manager has to be managed. Ultimately the CEO and board only have a finite amount of time to review projects and monitor performance, and otherwise even mildly profitable projects no longer become worth it when the cost of them being a distraction to management is taken into account.