I'm not sure I understand the outrage of personal data that retailers have outside of actual credit card details. They know someone at address 123 Street or em

I'm not sure I understand the outrage of personal data that retailers have outside of actual credit card details. They know someone at address 123 Street or email address johndoe@email.com bought batteries or a phone or a tv? Okay and you're going to get more emails or snail mail advertising crap to you. Spam folder or garbage bin. Also - how is this actually worth any real dollars to another company? In this day and age are there really companies with a valid business model that rely on getting lists of random consumers who bought electronic crap? Isn't that like everyone that has an address. Really, please someone enlighten me about this.