How much does a c13 NMR cost?

I'm curious, what kind of financial investment would one need to make in order to acquire a C13 NMR machine? Is the cost primarily determined by the make and model, or are there other factors that come into play, such as maintenance and operational expenses? I'm asking because I'm considering adding this technology to my research lab, but I want to make sure I'm prepared to cover all the associated costs. Can you provide me with a rough estimate of what I might expect to pay?