If you are 20 years into your career and want to rank up to earn more money, an MBA is probably more expensive than it is worth.

Or the opposite. It’s still situational. My uncle had a long career at a large company and worked his way up to a very senior position. But he hit a ceiling where he would no longer be promoted without the appropriate degree. In his situation it was worth going back to college after 35 years in his career. Because it meant a promotion and raise, or not