The hotel options were markedly different than in Tapachula. I ended up paying $15 for the night. There was a hotel for $6, but the idea of sitting on the beds there made me uncomfortable. I didn't want to even think about sleeping there. I don't remember the last hotel I saw that was too skeezy for me.
I was following the Pan-American highway, so I figured that it would be easy to find direct buses to any other location on the highway. I was mistaken. There were no convenient direct lines to Oaxaca, so I was going to have to spend an hour or two in a town called Juchitan.