RAM is insane! Granted, they reached their peak back in Dec-2017 - Jan 2018, but you can see the initial spike started back in Sept 2017. I'm not saying that's when it started, but it's definitely a marker. So far, it's going down, but not nearly fast enough IMHO.
https://pcpartpicker.com/trends/price/memory/
If there's price fixing going on (and IMHO I believe so), I hope those responsible get a painful hefty fine. Otherwise, the slap on the wrist will be part of their Cost Benefit Analysis (CBA) where it's still profitable to conduct these shenanigans all while passing the cost of the fines back down to the consumer. If so, next fine needs to be a "Shock and Awe" event.