@johanmynhardt Honest answer: I don't know.
On one hand, they seem to have managed to monetise their products, so, at least in the short term, it seems sustainable. That said, we're not really talking about AI, so it may happen that the trend wears out, or that some system makes a catastrophic mistake and we decide it's not worth it anymore. (By ‘catastrophic’ I don't necessarily mean a nuclear accident or launching missiles, but a medical misdiagnosis or any other error that costs its company money.)