> Advertising is different from Javascript. Advertising can simply be a load of images that are easy to render, as in traditional periodicals. Web pages suck because it's easier for a site to instruct the client to download and run analytics software from 3rd parties, instead of doing that work server side.

My understanding is that one thing that Google, Facebook, and the internet as a whole have done is to make online advertising an incredibly high-volume, low-margin business. Trackerless banner ads pay almost nothing. Trackers push the margins up, but Google and Facebook suck up most of the air in that room.