Expand your horizons outside of Bitcoin and you will see there is a lot of money to be made now, by the time KNC delivers their solution Litecoin will likely be $25-$30 (IMHO)
I've briefly check and you can get 15Mh/s of scrypt mining power for ~$10K. it will give you 2.6 ltc/day (0.07583304 btc/day at current exchange).
Your math is a little off, 15Mh/s will get you 0.09 btc a day, that is not me estimating by the way.
could be.
this is the first litecoin profit calculator google decided to serve me:
http://www.coinwarz.com/calculators/litecoin-mining-calculator/?h=15000.00&p=500.00&pc=0.00&pf=0.00&d=5735.89666335&r=50.00000000&er=0.02883000&btcer=611.52000000&hc=10000
I understand, two data points you are missing:
1. Not just Litecoin - coins change profitability very fast, most coins (like DOGE) are 4400% more profitable than Bitcoin,
Multipools like scryptguild and clevermining are paying 0.00867-0.009 per Mh per day
2. I have 15Mh mining right now and I am making 0.09 btc a day with scryptguild.com
Now you got it!!!
I am making more with the the 15Mh I am mining scrypt with now than the 750Gh I was mining BTC with last week.
and my power consumption is 1/4 to 1/3rd what it was and the heat produced is near zero.
If I wanted I could run my miners in my 90 degree attic all summer and they would never overheat.
