Awesome!
I absolutely love this! It's fantastic!
The only suggestions I would have though, would be to make more land available (whether you have to bribe for it or destroy it or whatever), also the loss of fertility in the land seems to go by too quickly. The profit margins on the burgers themselves are pretty slim, and it seems to be that once you're in the hole, your in the hole. But, I guess that's pretty true to real life.
Otherwise, perfect!