Earlier quoted context omitted.
You would end up stalling the development of new products. I can't invent and sell an 800 usd massage chair if people assume they cost 5000 usd and so don't even go looking for them. I can't start a "we are cheaper than wallmart" discount business without advertising this fact. You need advertisements, or something like that, to encourage new products and price competition. You do not need tracking for any reason sin…
Yes, it would stall development of a lot of business. Many of these businesses are not necessary. Humans would start a different path of looking for what's actually useful rather than falling for what's out there -- or at least that's the dream :) [edit] Onto your second point, that you need ads to promote price competition, I don't think so. There's almost no advertisement in many kinds of services like e.g. hair sa…
The thing is, advertising does not efficiently suggest products/services now, so the idea that removing it would hurt customers ability to find what they want is a little melodramatic