It's a common misconception that wine pricing is all to do with labelling, and nothing to do with actual price inputs. While it is certainly true to some extent, truly great wine comes from truly great vineyards, which are in limited supply due to the exact agricultural/climatic conditions required to grow them. Also, expensive wines such as Champagne which take a long time to make are still very much a hand-made product.
None of these applies to cultivation of pot, even the more exotic varieties. As it can be successfully grown indoors, the conditions for creating it can be created just about anywhere. There is none or very little post-processing involved and the supply chain is astonishingly short.
So I think the comparison to things like wine and coffee are incorrect, as these 'commodities' actually require exact growing conditions and post-processing to get high quality results.
A better comparison would be tomatoes. There is very little price difference between the cheapest tomato and the most expensive, highest quality, organically grown version. I'm not saying that pot is like tomatoes, just that the market conditions are closer to tomatoes than they are to wine, and so the price discrepancies are unlikely to reach the levels between a cheap bottle of no-label wine and a bottle of vintage Dom Perignon.