Going to the west was preferred because they were promised the ability to buy cheap land, which meant you could build a new life there. By getting a land plot, ex slaves could create farms and sell the crop.
Explanation:
This is what I put. I'm not 100% sure it's right though (the last sentence may not be) but I know the land part is!!
character vs. character, character vs. society, character vs. nature, character vs. technology, character vs. supernatural, character vs. self, and character vs. fate.