Let me take it one step further though.
Many people, even having viewed ads, never really paid anything into the system. They just ignore the ads regardless of how perfectly tailored they are. Maybe we can say something about sub conscious influence or the like, but on the surface the internet is just a huge free playground for them.
Or perhaps they bought products from ads, but it was just stuff they were looking to buy anyway. So they effectively get "free internet" just for buying a school laptop or power tool set.
The downside to the ad model is all the privacy invasion, but being real for a second, the privacy invasion so far is scary because of hypothetical threats, not realized ones.
For the vast majority of people who are tracked to hell and back, their is zero perceptible impact on their day to day life, while they get a bunch of free stuff for it.
This is why the ad model will be near impossible to kill.