Nah, that model is expensive and buggy, not to mention closed source.

Depends where you live... In some places those models are entirely affordable. But likely will also there get less and less affordable.

most of those are trained on a very flawed data, so in order to use it for anything non trivial, you will have to invest a lot in fine-tuning, maybe even to an extent to call it training

but it work. I can't believe that we choose from different robots.