btw it is very restricted and hard to get bitcoin's in Israel.
i would say ... I'm not sure at this point.
you can try one of the mining profit calcs
http://dustcoin.com/
https://www.litecoinpool.org/calc
http://bitcoinwisdom.com/litecoin/calculator
all depends on what you can get your hands on, how much it sets you back, how much your electricity costs, etc.
Hypothetically, let's say a truck load of 79xx gpus falls off the back of a truck into your lap and you dont pay electricity. Profit!
Anything else is pretty much a toss up given the volatility of everything.
The other approach if you're interested in owning but not mining is to take the money you planned to buy hardware wth and invest it directly into LTC/BTC etc.