About 12 months ago, I bought Kingston Fury 8GB DDR4-3200 modules for £15 (UKP) a pop. Now it translates through to £33 (the 8GB module isn’t available on its own from my normal supplier, so I divided the price of the 16GB pack by 2).
I’ve checked around other UK suppliers and there definitely seems to be a trend. There’s talk about the demand for AI driving up prices of NAND (which I’m seeing too, just not as drastic), but I would have thought that DDR4 memory chips would have been affected by that. I checked DDR5 prices this morning in the hope that the rises DDR4 prices were a sign that it was time to move my baseline PC builds onto DDR5 tech, but no, they’re higher still.