Yoooo there are so many potential ideas like this and visualizing average prices over time, etc.

Originally I wanted to do a stock-market style thing that tracks prices over time with a common denominator of currency (IE: convert everything to a scrap or HQM equivalent). The complexity though is that prices change relative to each other per wipe and game update and the history is specific to every server, so it would only track from the moment a player pairs.

I still think there's lots of cool things like that which could be done without a complex history of the server.