Thanks, @abcd567! I hadn’t looked at the 64-bit advantages yet, but for my radio Pi, it looks just the ticket. And there’s now an 8GB Pi 4 to boot.
I guess the Pi’s were starting to lag a bit on software being 32-bit in a now 64-bit world. It looks like both Pi 3 and 4 are 64-bit CPUs too.
Found this as I was looking at the pros/cons and it includes where the 8GB model shines.