I'd add that's it's worse because the world is flatter. Why should I buy Brand Item when I can get a version from Alibaba for 10-20%? If it truly is comparable, then why pay the markup when the internet lets me cut out the middleman? But then when the version from Alibaba is total crap, there's no recourse. It's not like a local shop with reputation at risk.
So you end up in this world where nothing matters and it's a race to maximize attention. Which means, as a consumer, you have to do your research or risk getting taken for a ride.