Not sure where you are located, I'm in Australia.... But they don't sell them here, so I had to get mine from the US. By the time it was sent out here I think it was around $350-$400. I only used mine for 3 cycles and got a bfp, but it still made everything so much easier. A lot of ladies don't use fertility monitors though and have success. If you have a really predictable cycle and can pinpoint with pretty good accuracy when you ovulate, then you may not need one. But i found it gets to the point where you have spent so much already with opk's, digital ph testers, ferning microscopes, negative ion things, supplements, special diet products, microscope, syringes, thermometers, etc, I figured I've spent all this, what's another few hundred dollars? After all, all of what I had spent combined was still cheaper than going HT !