There's good and bad from advertising. I think it needs to be regulated and restricted more than banned. They did some study and where advertising was banned prices were higher because low cost providers couldn't put up a get it cheaper here ad. In the UK solicitors are banned from advertising and it makes getting one an expensive pain in the arse.
In olden days we used to get a classified ads newspaper through the door and that was good as you could pick it up if you wanted to check out the ads or ignore/chuck it otherwise. I'd be fine with ads if I had to click to see them. It's having them in your face when you don't want them that's a pain.