have used it at 2 different enterprises internally, the issue is price more than anything. enterprises definitely do want to self host, but for frontier tech they want frontier models for solving complicated unsolved problems or building efficiencies in complicated workflows. one company had to rip it out for a time due to price, I no longer work there anymore though so can't speak on if it was reintegrated.
this is more or less my take too. if tomorrow all Claude and ChatGPT became $200/month I would still pay. The value they provide me with far, far exceeds that. so many cynics in this thread.