In reality, of course they're not ok with dynamic pricing
Unfortunately, like most economic theories, reality is a bit more complicated. When blatant dynamic pricing is revealed to a consumer, it appears more like price discrimination than the fluffy world I illustrated above, because we feel like we were just lied to and that we didn’t get as good of a deal as someone else. Years of travel commercials have taught us that we can only hope that the person sitting next to us on the plane paid more than us. Ironically, some how we’re ok with this scenario, but assume everything is nefarious if it occurs with a book on Amazon.