Whether you pay to opt out of ads is a function of how much you hate ads and how willing you are to spend money in general. I think the latter factor is more significant.
Your premise is at least partially fallacious - whether or not I am willing to spend money anyway, is not the same as whether or not I am influenced by advertising.
If I spend money in the same way as I would have spent anyway, then the advertising has been a waste of time.
