I make my own. It costs me around $110-130 and they take pics as good as a $600 unit. Kind of fun to be able to make the camera as well and it gives you a good feeling to know you took the pics with something you made. I haven't made any for a year or 2 and there are better cameras out there now to make. I spent a lot of time on e-bay buying up the kind of cameras I wanted and then bought the control boards and other stuff and put them together. I had about 18 at one time.
Screw them and their tags..