So the Vault really only starts with 1 SLOT? This feels pretty weak/lame to me and it's not intuitive the differences between Armory (which looks like it has tons of space) and the Vault.

Additional Vault slots cost ~$5 per 1 extra SLOT? Really? This seems pretty exorbitant price, why is it so high compared to everything else?

Anyway I hope this changes, I like many other factors to the game.