I think most LLM work will migrate to open weight models in a couple of years for this exact reason (as well as price), unless the big providers manage to have their way and the market gets regulated in a way that favors closed source models. To me it seems though like most models are becoming good enough for most tasks we want them to do so no need to use the latest super intelligent one that knows how to compose operas and do quantum chemistry and have it answer support requests. And with these models transparency is no issue.