Companies have been “locked-in” to vendors since IBM in the 50s. There are still plenty of successful companies that have been dependent on IBM for decades and weathered plenty of recessions. That’s not to mention all of the companies in the modern era that are completely “locked in” to the Microsoft ecosystem and spend literally millions on Windows, Sql Server, Active Directory, Office 365, etc. and have also weathered recessions.

Any large company depends on literally dozens of vendors that they have tied their business process into where it would be a major pain to switch.

I know in the health care industry, a lot of health systems are so tightly tied into their EMR/EHR, leaving a something like AWS would be a breeze.