Rebreather vs. OC cost comparisons

[LKunze]

Just out of curiosity I'm wondering what the cost comparisons are between rebreathers and open circuit? An Inspiration rebreather itself would cost more than a typical OC doubles scuba rig? I also get the impression that you get more for the money with rebreathers in terms of gas expense since you are reusing some of the gas that gets recycled so it lasts longer but rebreathers need chemicals and are higher maintenance too right? So how do those expenses figure into the cost equation when comparing the two systems?