I think you're right... but ChatGPT is just so damn good and the price is 0.002 per 1k tokens is very easy to consume... It is a big risk that they can't maintain compatibility or that they fail or a competitor emerges that provides a more economical or sufficiently better solution. They might also just becomes so unreliable because their selected price isn't sustainable (too good to last)... For now though they're too good and too cheap to ignore...