Discount appears on checkout when you choose the payment method.
edit:
not longer mentioned on one of those banners ?https://www.kncminer.com/pictures/carousel/5437.png---
Takes over 1,250 GPUs at 400MH/GPU to equal 1 Jupiter. I doubt GPUs will be any profounding impact.
if electriciy is for free a 7970 will produce $0.24 a day right now, if you bet BTC value increases you might turn on again
and those usbminers consume 2,5W at 333MH/s
edit:
it's like ants - a single one is a joke, but when they reach up to 2-3m² you're in trouble
little exaggerated, I know, just want to point out that flattening/decrease is a little weird under current conditions - but for sure I have no fear of gpus with a Jupiter
