You need to consider some users A) don't want to see ads at all (exhibit A: lot of posters in this thread) B) rather see "dumb" ads than personalized one if it comes through individual level tracking and profiling (that's me). From this perspective no amount of evidence can convince me they are "right" and I have no wish to contribute in any way to "betterment of ad quality" for the price it is proposed. This is comment is no reflection on the rest of your argument btw, just addressing the premise.