A major part is ALL about IP and exclusivity. There being NONE, in the minuscule chance this makes, instead of pisses off, any money, their edge is gone in 60 seconds flat. Cant AT ALL believe no other bright kid could not tweek the ebay-available-PID controlled processers, its simply NOT that complicated. The problem is keeping the machines running & stable & clean while repaying for the raw material costs all the way to the hopper. It was not only up time that killed the goose, it was $in vs.$out. Sorry, Game Over, Bye.
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