There are new SLA (stereo lithography), SLS (selective laser sintering) and deposit based methods which have come a long way in the last 2 years. Again, the catch is you need CAD and reverse engineering of the original object if you want to make a new one. It's easy to do if you have a 3d scanner and the software though
The printing cost is all determined by how much raw material is used. You can even color the object so when completed it just needs clear coating for protection.