I briefly looked into this, there was a freelance job of making proxy bots to scrape the steam page for prices, the number mentioned here is even crazier than w

I briefly looked into this, there was a freelance job of making proxy bots to scrape the steam page for prices, the number mentioned here is even crazier than what I saw eg. $12K for something vs. $2K for a Karambit knife skin. I didn't get far with the project, was harder than I thought as the proxys you can rent were blocked at least the few I tried at the time. The problem was the rate of checking it was I can't remember hundreds of times a second to provide a "real time" ticker.