Nowadays you are the product even if you pay. (E.g. Subscription news sites including trackers on subscribed users, smartTVs siphoning data etc)
T-mobile sends me ads over SMS that I paid for.
JetBlue serves ads to paying passengers on the seat-back displays.
I hear Windows has ads now, but I got off that ship a while back.
Being the customer is no longer sufficient; companies have figured out that they can make more money by charging you and serving you ads.
It's not like 99% of them are going to care and/or notice anyway, and if anything it would be more work to test and maintain a different version of the code without trackers.
Just pay for the things you use people, and block everything you can with browser plugins. This model needs to die.