Sorry, I meant the Sierra (3rd batch) for $6k, but I'm even surprised that the Jupiter (being a very new unit) wouldn't ever give a ROI. So if this is true even you experienced miners are constantly buying new hardware all the time.. your fancy new units at best will be obsolete after a few months? Sorry, I'm just trying to get my mind around this. Even if profit isn't your only concern, this seems like a pretty crazy arms race.
People pay tons of money for backyard greenhouses and perfect soil to grow a few over priced tomatoes. Wouldn't they get more tomatoes for the same money at the store? Even bio-eco-super tomatoes? Sure! It's the same drive for miners.
The only people benefiting monetarily from mining are the ASIC manufacturers and... Bitcoin USERS!