Well of course I understand them from selling points, if I was Toei and Bandai, I'd ship the **** out of that.
But personally, I just can't see how it's efficient. Combat wise, it's sort of efficient. But the fact you have to constantly dip in a canister to grab new medals, then dispense the old medals is really a draw back. Plus, it could've been keyhole lagging on me, but Date is a terrible shot, cause most of the shots to me looked like he was shooting all willy nilly.