I wonder about the prices rising thing. If one guy wants to jack up his prices for me ... someone else might be smart enough to lower them.
True intelligence is collaborating in raising prices, as everyone wins. An incumbent who refuses to participate can be forced out by systematically lowering prices until they go bankrupt. Always assume something with more power and money than you is going to take every step they can to bully and mess with you, because it has been obvious for a while it will. The whole "the market will fix it" argument is untrue in so, so many scenarios that it's not worth addressing beyond that.
A poor person might get ads for predatory banking products and payday loans, while a wealthier person might get ads for investment products and mortgages or business loans. The latter person might get ads for Whole Foods, while the former gets ads for Dollar Tree.
I prefer them to not have ANY information about me - because the holy grail of such system is to dynamically adjust prices, upwards, depending on your preferences. To extract as much money as you are willing to pay for a product.
An automated bazaar system, where prices can only rise for you.