Is that how much all people paid for those games? Or is it just how much those games are worth? Because games like RDR2 and Cyberpunk go on sale all the time. The Steam sales make everyone want to buy games because the deals are just that good.

I myself have 85 unplayed games in my backlog. Most of them I got for free or got for less than $10. The exceptions being Judgement, Alien Isolation, and Ratchet & Clank Rift Apart.