Excellent. Thank you. The info about the memory is interesting, and shows Apple is learning on this point. But the theoretical maximum is just that - theoretical - if Apple builds a form factor that (for example from prior Macs, but not necessarily here) only allows a single memory chip expansion, or requires a special half height memory chip that isn't used in any other machine, Apple or otherwise, or is otherwise difficult to get in four years. Hard drive upgrade availability would also be nice.
I, too, like the pizza box idea, even though the Mac with the compatibility problem in my past was
an LC.