Not to diss VI in it's own right as it's a good expansion, but it's really all the mods that that justify the expense! I'd add to what others have said: with Hellenic, Napoleonic, ATW, XL, PMTW, Samurai you get LOADS of extra games for the price of one expansion disk. Go for it, you won't regret it (except when you have no life left after all your waking hours are consumed by all these amazing mods )