Honestly, I never go to game stores anymore (haven't in almost 5 years), nor do I go shopping much at all. I only create Kickstarter projects, I never look to Kickstarter for any other reason, so I never look at what other KS projects are out there (I generally don't care enough to look). I've never visited WotC's website. I never look at online ads - banners or otherwise. So the only place I'm going to "see" a new game is in an RPG forum thread titled with an introduction of such a game. If I choose not to look at such a thread, then indeed "I won't be able to 'see' it." If you're looking or "not looking" the same as I, there's no way to "see" it. So what obstructs my perspective cannot possibly affect how others do.
All my game purchases in the last 7 years, was following reading a forum thread about some product on ENWorld or the Paizo boards that somehow intrigued me. Also since I am a freelancer for Rite Publishing, everything Rite releases (even the many products I have no part in), I get a free copy. Also many publications that have my cartography featured in them, is usually sent by the publisher (at least in PDF form) as a bonus to payment - including The Empty Throne module of the Paizo Publishing Jade Regent AP (I don't have the rest of the modules, since I would never buy them). So the majority of RPG products I've obtained in the last few years, cost me nothing. That said, I've purchased at least $100 in game material last year alone.