Sometimes price discrimination may be overall good, but it easily leads to price gouging and I believe there a laws against it, for a good reason.

Should I pay 1.2x, 3x or 100x as much today, just because you know I desperately need the product/service today vs. yesterday?

What happens when I get (wrongly) classified as rich and now can't afford a normal life?

Should medication cost <som of your savings> if it is for life threatening issues? Should basic necessities cost more because my house burned down/got robbed/lost my luggage/whatever and you know I have money?