I remember in the 90's there was some sort of shortage reportedly due to fires. In the end it was found the shortage was due to collusion by the manufacturers.
Oh its probably that again
https://www.polygon.com/ram-manufacturers-sued-supply-price-...
But fortunely today we know that there is huge demand due to AI
It did happen in the early 2010s though https://www.crn.com/news/storage/231902425/thailand-floods-t...