What you’re describing is exactly how most ads work. It’s to inundate you with a brand so you want to search it up and likely purchase it. You never bought directly from an ad, but an ad sure as fuck worked on you.

I’m a former digital marketer. Many ads are meant for brand reach. They’re basically there to ear (mind?) worm you so you’re thinking about the brand. Digital ads can be cheap in niche markets when bidding isn’t forcing up prices due to competition for market share.