It is quite an expensive total station, but the leica builder 503 total station is a very high quality total station. The builder 503 is built to a very high standard, as you would expect from leica, it has lots of features which make all kinds of measurements quickly and accurately, and the bluetooth link up is very handy. So whilst it seems to cost a lot of money, its because you get much more for your money, and as it is a much more high quality total station, the builder 503 will last longer and be able to take more punishment on site than many other total stations.