Playing to 13 VCs gives the Axis the choice of whether to try to take down an Allied capital or to pursue a less central strategy that involves taking only peripheral VCs. The latter strategy spreads the action out around the board more.
krieghund, can you imagine a scenario where a player can hold 13vcs after usa turn and not eventually get 18vcs?
if you can get 13vcs you have dominated the game. there is no reason to play to 15vcs or more. 13vcs is a domination game.
vc amounts do not make for different game playouts.
notice how there are no threads discussing the different strategies of a 13 vc game vs 18vc game, like there is for 1941 vs 1942 scenario or without NOs vs with NOs.
if there was an option for axis to win with 11vcs then the game would have more variability.