[wintermutestwin]

You are now "paying" google twice - once with money and twice by giving them your data.

[benhurmarcel]

Your data is worthless if they can’t use it to show you targeted ads.

[yedava]

Even if you pay for Youtube, Google still shows ads in their other products (search/maps etc...). So the data is not worthless. It also gets stored forever and Google can figure out other ways to monetize it.