I expect targeted surge pricing. Like plane tickets will go up in price if they know you searched before, or if you mentioned a wedding or if someone close to you is also buying a ticket.
And the it might get so random as to base prices on willingness to pay. Already this is happening with delivery services and taxis.
And then it might be; late at night, last store open and they can raise the price of baby formula because they know you are out.
And then it might be that you said something in social media that suggested we raise taxes on the wealthy. So you end up paying more at the grocery store.
Once an AI agent can be assigned to track and connect each customer to a profile, the profit potentials are endless.