I get what you are saying, and as a young hobbyist back in the day I loved perusing ads in specialist magazines. These days though I'm a much more informed and involved buyer, and have found that ads are usually not a great indicator of the best product or service for a particular need. I don't agree that online advice is worse than ads. It's a matter of doing the legwork to find the right place online for a particular interest, and also cross-referencing multiple sources to avoid getting caught by astroturfing. Ads are biased by their design and nature, and in most cases the placer of the ad has zero interest in making sure you choose the best product. They want you to buy their product even if it's not the best fit.