If they were sure enough people would pay for something they'd just make it paid AND shove ads in it.
You know what I wonder? Where's the hatred threshold for ordinary people? When you see an ad in a middle of something and you're so pissed that you'll go out of your way to specifically avoid the product that's shoved in your throat. I know mine's been reached, but, hey, I'm just an grumpy asshole ;)