Aguacates

I was going to argue until I read this. I didn't know that Michoacan teachers had blocked roads too. This state is the number one producer of avocado followed by Gueerrero and then Oaxaca which doesn't produce as much as Guerrero nor Michoacan do.
If teachers block roads in MIC, then it's clear why avocado is high-priced.

http://goo.gl/z59Doq