I have a few, that I have had for a while. I keep one in my get home bag, showing the area, between where I work, and live. I used to carry two, due to distance. I need to get more, but like you I find them overpriced. Which to me makes little sense with satellite mapping technology, almost making land surveys obsolete, they should be cheaper. I used to take them on my son's boy scout campouts to teach the boys, orienteering skills. It's been so long ago that I don't remember where I got all of them but I know I got one or two at a map store in Fort Worth on Henderson street. It's long gone now though.