A price increase in one market can displace demand to other markets.

A workstation user or gamer might want a desktop PC loaded with DDR5. But they'll also consider a desktop with DDR4 or even a laptop with LPDDR4X if they get more for their money.

So a rise in demand/prices for DDR5 can trigger a lesser rise in demand/prices for LPDDR4X

That's a good point that I had not considered, thanks.

It's a surprise bonanza for the low-end RAM producers. Raise prices substantially with no new investment needed. Some of these factories must have paid for themselves years ago.