I think he's talking about something like
this 48ct case that's hopefully as skinny as a stash to allow for loose packing instead of tube use. It's a good idea, though you'd definitely need one from which you can easily remove the pages/sleeves. You could go with one of the
much bigger ones to fit a volcano board, though they're much wider (deeper?) than the low count ones, so you'd probably need foam or somesuch as filler.
I have a 100ct one that's rectangular but fairly wide, I'm going to try storing some Treehouse tubes and Fluxx decks in it to make a Looney carryall, though I doubt loose pyramids would turn out well. I'll report back.