This page is good too if you are planning in investing in gear:
http://bitcoinwisdom.com/litecoin/calculatorEdit: Just remember that GPU mining is another game than bitcoin asic mining, since the GPU still have some value when then can not generate a profit in respect to electricity cost, then can the cards be sold used, and if you have already reached ROI by mining, then is the sell all profit.
thanks
) this pages can help me a lot
) so if i correctly understand with this card i can mine even 1BTC in 31 days?? of course with power cost and difficulty can change
)
btw can u tell me i correctly calculate kh/s??
http://www.wheretomine.com/ type 650kh/s and take earnings for top (you should have MEMcoin as first coin)
I cannot say anything about spots, I have absolutely no experience in that.
I tried spot for 30 min, when I saw this thread, i could not mine anything descent.
There are many variables to take into consideration.
1. How much time will it take get the gear up running.
2. Can the gear run 24/7? (dont take it for granted that you can plug it in, and then it will run for 31 days, without some kind of tweeking).
3. How much the gear cost.
4. The electricity cost.
5. The difficult change.
6. The exhange rate on the scrypt you are mining.
If you can earn 1 BTC in one month with a 200-300 dollar investment, then would I say that you have found a sweet "spot".
Remember investment is always the game of risk, there are no sure thing and absolutely no guarantees.
You have to evaluate the risk vs. the opportunity for profit yourself, before making an investment.