[gnicholas]

This is a superficial view that does not account for the advertiser's ability to price discriminate via advertising. For example, say there is a Batman movie coming out, and I sign up on the Batman website to find out when/how it is released.

The movie folks now know that I am very interested in this movie. They can choose to target me for a small coupon advertisement, knowing that I will likely claim it and consider it a win.

Simultaneously they can target people on FB that they think are Batman fans (but who have not signed up for their email list) with a more generous coupon.

So while I am seeing advertisements for relevant products, I may be seeing less-generous offers than I would see in a world without tracking.

[rbecker]

With e-commerce, the coupon bit will soon be unnecessary - you'll just see higher "personalized" prices, with no indication that they differ from what others see. Like a more targeted version of https://crow.app/blog/price-localization-with-stripe