The volatility is exactly why I started using https://dmarket.com/cs2-wiki/ to track price history and market trends. It shows detailed graphs of how skins perform over time instead of just current listings. Really helped me avoid buying at peak prices. They also explain how float values affect CS2 skins differently than in CSGO - apparently the wear patterns render differently in the new engine which impacts rare pattern values. Started using their alerts for price drops on specific knives I'm targeting