Throughout all my Yucatan travel blogs I have constantly been preaching that traveling the Yucatan Peninsula does not have to be expensive. It just comes down to how much budget you have! Prices in Yucatan and traveling around the peninsula are probably only a fraction of what things cost in your hometown, but please refrain yourself from saying the Yucatan is cheap.
The more you explain the locals how cheap it is to travel to Yucatan Peninsula the more expensive it becomes. Keep in mind that for locals the tourist prices in the Yucatan are expensive!