I voted no, but only cause its a lot of work already keeping track of all. I mean next thing you know your tracking SteelCases (steel slips) and steel tins as well.
No one really cared much at all about anything MetalPak until the Iron Man was released. Though some of the upcoming BOL titles (Blade) are interesting enough.
I think if popularity ever demands it via increase in MetalPak forum then perhaps. Those are just my opinions, ultimately the community can decide. I'm down for whatevers, but I'm pro SteelBook through and through!