How expensive is a robot?

Excuse me, could you please elaborate on the cost factor of acquiring a robot? I'm curious to know whether these machines come with a wide range of price points or if they generally fall within a specific budget bracket. Is there a standard cost associated with them, or does the price vary significantly depending on the features, capabilities, and complexity of the robot? Additionally, are there any hidden costs or ongoing expenses that I should be aware of when considering purchasing a robot? Your insights would be greatly appreciated.