Last week I was having lunch at the American Legion and sat with 3 others. From our discussion they were all looking for "cheap" accommodations. One mentioned that he was at the "Cow"apartments , 2/3 blocks north of Chapala plaza and was paying 4000 pesos per month. Interestingly only 1 was from the US,  the others; 1 from New Zealand, and 1 from Australia    they were all on Tourist Visa and if the over stayed paid 500 pesos when they departed I wonder how many indigent "gringos"