I've gone this route as well. I had good luck with certain SD cards, and earlier versions of the Pi for small things. But I've tried to use them as wireless APs, and they fold under any real use. Wireless firmware hangs requiring a full reboot to fix. Pi4s have given me a ton of trouble, and I've been on the losing side of the SD card roulette and had USB drives fail under load. There is always some kind of IO or sagging voltage problem with a power supply wigging out or I got a bad one.
Moved to using low power thin clients on liquidation for similar pricing, and it's all been a breeze. I get real disk IO. I get a real wireless card which runs an AP night and day better. I get a real USB power budget with a much more trustworthy OEM power supply. Power profile and size is about double, but it's a very worthwhile trade. I like the 1L system profiles and lean to the HPs.
I don't mind ARM in the cloud, but at home I just want real hardware.
Moved to using low power thin clients on liquidation for similar pricing, and it's all been a breeze. I get real disk IO. I get a real wireless card which runs an AP night and day better. I get a real USB power budget with a much more trustworthy OEM power supply. Power profile and size is about double, but it's a very worthwhile trade. I like the 1L system profiles and lean to the HPs.
I don't mind ARM in the cloud, but at home I just want real hardware.