A long overdue visit to PYR website...very impressive!!! Lots of great information if you have the time. I spent my time on "products and services" and then selected "torches". I think I finally understand the $3-4M NPV number on the torches. There will be plenty of service revenues after the sale, for example, look at the High Powered Plasma Torch (APT-HP). The electoride life is described as "up to 1000 hours for cathodes and up to 500 hours for anodes" Basically, that means users will need to to replace cathodes and anodes frequently (every month of so) with a continual revenue stream to PYR. VERY NICE!