It's very simple. You get what you pay for and the longer you stay, the lower the daily cost will be. When we retired 10 years ago we opted for Yuma AZ because of the warmth(warmer than both Phoenix and Tucson). I picked a nicer place off the internet and 10 years later we are still here. There are many places in Yuma for less money. There are many "cheap" parks with very limited activities. You could stay in one of them and sit around all winter talking about all the money you are saving. PM me for more info on Yuma AZ.