Some folks might have missed that memory prices on the whole are up [1] 90% since Q4.
The memory used by the Pi 5 is up 700% [2]!
Raspberry Pi are working the issue by releasing new memory variants that are cheaper[2].
Edit: You can still walk into a Microcenter and get Pi 5 16GB for US $289!
1. https://au.pcpartpicker.com/trends/price/memory/
2. https://www.raspberrypi.com/news/a-new-3gb-raspberry-pi-4-fo...
Microcenter doubled the price of the 500+ kit shortly after I bought one. Still $90 cheaper than Adafruit, unsurprisingly.
[dead]
>Raspberry Pi are working the issue by releasing new memory variants that are cheaper[2]
Raspberry Pi are working on the issue but letting you spend the same amount of money per GB, for fewer GB.
The trouble is that the RAM chip on the Pi is a high density module that's going to have come under pressure from the datacenter buildouts.
An 8 GiB DIMM for a desktop or server is using 8x 1 GiB chips or 16x 512 MiB chips (9/18 for ECC). An 8 GiB Pi uses a single 8 GiB chip. That's the same density as you would use for 128 GiB or larger sticks.