How much do the robots on BattleBots cost?

I'm curious to know, just how much do those fierce robots on BattleBots actually cost to build and maintain? Are we looking at a price tag that would make most of us wince, or is it more affordable than one might think for such high-tech, custom-built machines? With the level of innovation and engineering that goes into each of these combatants, I'm sure there's a significant investment behind each one. But I'm eager to get a sense of the financial scale we're dealing with here. Can you shed some light on the budgetary requirements for these robotic warriors?