Very true. I have ChatGPT set up to do some recurring tasks (keeping track of developments on a policy proposal in politics; on a weekly basis tracking music releases based on my evolving tastes; checking new book releases; basically doing recurring deep dive web research on my behalf and reporting when there is a significant new finding) and this alone keeps me from switching to another service.

The AI itself is quickly becoming a commodity. The ecosystem is what will keep people tied to one of the companies.