The cost is a problem, but IMHO more important is delegating so much of your internal knowledge, thinking, and systems to a 3rd party.

We are very close to the point where if Claude and ChatGPT APIs are down, companies cannot function. How is that introduced so quickly into so many critical places without taking that specific fact in consideration? What is the plan for all those companies whose workflows now depend heavily on a remote LLM whenever the services get cut? What if your company account gets banned?

In some ways it is worth than depending on a company for hosting, because even your debugging tools are based on AI. MCP is great to go through datadog, sentry, until your agent or the MCP server are down and you don't know how to look for the issue yourself because you do not actually understand how your systems work.