G.I. Joe Sure Has a Lot of Tanks

If "Knowing" was half the battle, did G.I. Joe really need all those tanks to beat Cobra? I mean, what was the other half of the battle... whoever has the weirdest tanks and the coolest ninja guy that doesn't talk wins?... I'm no mathmetician, but it seems to me that if G.I. Joe just knew twice as much they would of been able to save a lot of money on tanks.