It's long been cheap enough that you can pay a call center full of people in a developing country to solve them for you. Going to be a while before AI is cheaper than that.

Having used them to protect a few web sites from spammers filling up forms, they do cut down on the bullshit. This makes things more convenient for the people reading the information coming in from those forms, but I sometimes wonder if it's worth the cost of everyone else having to pick out the bicycles in the picture.