[Imp]

Due to the increase in unit costs in later years at least for the main powers victory hexes play less of a roll in determining who wins.
You can of course get round this.
There is a spread sheet available at the Blitz which factors victory hexes owned into the results more.
Another simple option if you want territory owned to play a bigger part in the results is to add a nice round figure to them then adjust the score by counting the hexes owned at game end. Just decide at the start they are all worth +1000 points or whatever you think suitable.