Been looking for RPI4 CMs for ages now and they've been sold out for as long as I can remember. Same with full size RPI4s and some Odroids. Is this just the new normal or are SBCs and CMs going to show up on the market again at some point?
I have 2 pi4 4GB boards and was waiting forever to get a third to run RAFT based services across.
I gave up last year and bought 3 chinese boards at $60/ea with 2x 2.5Gb Ethernet each, emmc, and a m.2 slot - and they run at half the temp of the pi4 boards.
I never needed the wifi/bt and form-factor the pi boards offered anyway - really no reason to stay as long as you can find software that boots on other boards.