i don't think this will come true in a short time. so LTC mining is much more FAIRER then BTC mining. everyone can get devices that are almost the same, i think finally the man who has FREE ELECTRICITY will win this competition.
There is no such a thing as "free electricity", and I think you know that.
Yes, you can steal few MWh/month for few months or even years may be. But you are not going this way if you invested seriously in hardware. Data-center using cheap but legal energy wins and owner of few videocards running free but illegal energy loose.