There are a lot of fakes, takes a while to appreciated wine nuances. I agree the lay public is not wine savvy. I can tell difference between cork taint, aged secondary characteristics, what ages well. Not everyone can, it helps that my father grew up in southern France and knows wine industry. I buy a bunch of wine direct en premier that gives a great discount. I as of late 2010, gotten into wines, and have benefited from his expertise and contacts.
But it’s almost guaranteed income if you know weather and chateaus, 2017 ok vintage and low volume, 2018 is shaping up to be a great year and 2019 all froze.