This game rewards people who are mathematically inclined, and landtrading using ghost acres do exactly that. In fact, landtrading is one of the most difficult, risky, and time consuming strategies, and accordingly should be highly rewarding.

SemperFi had the countries with the most land, some approaching 40K within a week and half of the set, but were attacked by SALT and lost many more countries. This is an example of when war was one of the main balancing factors that keep landtrading in check.

With that said, i tip my hat off to Rockman who has done the best job ever of landtrading.