I actually keep a 16 deck metal Rook Case with old standard and block decks and I've thought about doing this many times. I have about 30 decks total, and was planning to get to 100 decks when EDH became popular and ruined my opportunity to finish this project at an affordable price.
Definitely a cool idea, but the possibility of theft stopped me from actually doing it. I didn't want to loan at 8 or more decks at one time to make it happen.
Fair enough.
I would imagine that the most realistic version of this is one in which the old top eight decks from Worlds are auctioned off. They're gold bordered, so I would imagine that they're not insanely expensive.