How much is a bolt robotic arm?

I'm curious to know, what is the approximate cost of a bolt robotic arm? I've heard they're quite advanced and efficient, but I'm not sure how much I should expect to spend. Could you provide me with a general price range or an average cost? It would be great if you could also elaborate on any factors that might affect the price, such as the model, features, or intended use of the robotic arm.