Yeah. I was going to point out https://camelcamelcamel.com which I've used religiously for years to gauge prices. Or https://isthereanydeal.com for video game prices (which thankfully don't spike that often but helps for assessing how deep a sale is).

Consumer empowerment is so wonderful. I was thinking yesterday about what a mystery it is that an auction site like ebay functions, that people would use it at all, without a tool to help them do silent auctioning/last minute bidding.

Would absolutely love for distributed layers to share & syndicate price and many other indicators to the world.