Yes. I agree with Eastwind.
I'm mining LTC because I'm speculating on LTC value. At the moment if I were completely rational I should mine BTC and exchange it for LTC.
BUT to do that you need to exchange, you have fees to exchange and fees to withdraw if you don't want to leave your money to the exchange platform.
And also you get a delay from exchanging. Today it's more profitable to mine BTC but maybe in 3 days it will be back to LTC.
So i guess if you believe in LTC and don't want to worry too much about exchanging, you shall keep mining ltc
But LTC has been consistently less profitable than BTC. Right now it's sitting at 88% profitability. Unless you pay an insane exchange fee of 10%, it will be more profitable for you to mine BTC and exchange for LTC. You will simply get more LTC per hour mined.
Not really.
In fact, it has been really profitable during march and April, lost a lot of profitability when LTC crashed from 0.03 to 0.022 or from $4 to §2.8 as we have seen.
Right now, LTC is 20% more profitable than BTC.
Since difficulty changes happen, you will see that whether or not mining a coin is profitable is a short to medium term decision. After all the question is whether or not you are actually mining the coin because it is a good coin or speculating.
Apart from BTC and LTC, I have not found a coin yet that is worthy of anything more than speculation. Freicoin is a great idea, but people won't like the idea, even if it does work towards social psychology well.