If you have the talent and the product to pull that off there are other ways you can make money more easily.
Its great for a gateway to bigger and better things.
If you can prove you are a great reporter for instance and can get a great following this may help you get a real gig at a major network.
But as far as YOUTUBE being the endgame there are much better ways to make money.
There are exceptions.
The girl who sang Friday, Friday is a good example.
Its kind of like sports betting.
If you are are smart enough to make real money year and and year out, that means you have the smarts to make money in other ways with a lot less headache.
I am speaking purely from the betters perspective and not the books perspective.