First, don't worry about this 180 day rule thing. I don't really want to waste time arguing about its existence or not. Even if the 180 day rule thing is real the fact is they are not really enforcing it. I know lots of people here who just take a trip to colonia or visit their family in the US or whatever. I don't know what some of the people's experiences are on this site but I personally don't know anyone who has had any trouble with staying here for a year on a tourist visa.