Digital Signs or AR? What becomes mainstream first? You can see digital price tags in Big Camera (Best Buy equiv.) in Japan. These digital signs could introduce interesting economics in physical stores, like dynamic pricing, personalization markets, etc https://bloom.bg/3CXBSqv

https://nf.td/edward | Building products @coinbase

Dynamic pricing likely to be gamed by consumers, possibly leading to regulation (as with insurance) — consider daigou wrt baby formula and luxury goods: https://www.bloomberg.com/news/articles/2021-07-21/china-s-daigou-shoppers-who-buy-goods-overseas-get-grounded-by-pandemic

at the end of the day, it's a marketplace, and there should be multiple indexes (i.e. a prices being sold on Amazon vs smaller retailers) with varying liquidity that the store can choose what price to show (i.e. set a min and max etc) to the customer