they have incentive but what's the sustainable, actually-pays-for-itself-and-generates-profit cost of AI? We have no idea. Everything is so heavily subsidized by burning investor capital for heat with the hope that they'll pull an amazon and make it impossible to do business on the internet without paying an AI firm. Maybe the 20 juniors will turn out to be cheaper. Maybe they'll turn out to be slightly better. Maybe they'll be loosely equivalent and the ability to automate mediocrity will drive down the cost of human mediocrity. We don't know and everyone seems to be betting heavily on the most optimistic case, so it makes an awful lot of sense to take the other side of that bet.