So here I have a readout. 53 BTC is the cost of one Jupiter paid the first week when Bitcoin was $130, and hosting was another 22 BTC--75 total
*preorders starts 3/6 (source:
https://www.kncminer.com/news/news-12 and mail in my outlook)
*during preorders start was price ~120$/
BTC (source:
http://bitcoincharts.com/charts/mtgoxUSD#rg150zczsg2013-06-03zeg2013-06-09ztgSzm1g10zm2g25zv)
*preorders closing 10/6 (source:
https://www.kncminer.com/news/news-17)
*during preorders stars was price ~100$/
BTC (source:
http://bitcoincharts.com/charts/mtgoxUSD#rg150zczsg2013-06-03zeg2013-06-09ztgSzm1g10zm2g25zv)
so jupiter costs from ~58.3BTC to ~70BTC (if you paid lasts days of preorder window) (VAT + shipping excluded, but most of EU guys like me should multiply by 1.2 - so 70
BTC - 84
BTC) + 160$ shipping + ~200$ for PSU (I'm to lazy count real price of hosting)
another point is hashrate of Jupiter. according to their website is expected hashrate 400Gh/s (source:
https://www.kncminer.com/products/jupiter), so please try to calculate with confirmed official values. (I know, that is expectation of 30% raise but you can't take it as fact)
regarding genesis calculation: not sure how it works, but I think that if you pick current month (September in this case), it is calculated like you just start mining. calculation is also tricky in another fact - it is based on 100% uptime (not possible) and with constant diff increase. because during end of September/first mid of October lot of guys receive their ASIC (Bitfury, KNC), diff increase will be much higher than is now and will grow really faster - just because new vendors, November batch of Jupiters, etc.
don't get me wrong, I'm on same boat like you with preorder, but your numbers are from wet dream or you don't want to admit cruel reality.