I am sure profitability is heading south as the overall difficulty is increasing
and the need for more powerful miners are needed at a higher cost.
Kinda of a catch 22 situation, like anything the highest rewards are to those
that take the greatest risk and fork out money for the newest and fastest
miners before release. Only risk what you can afford to loose in mining
hardware and new coin purchases. With the alt coins no limitation in new
coins being released the value of the coins may never be able to generate
profits like previous bitcoin. Also with so many different coins on the market
the hash power is being spread so thin that there might never be enough
prolonged hash power kept on any specific coin to push it up and keep it
there for great profits to be made. The pump and dump in the alt coin market
maybe the only way to make some money. The alt coins of the future might
be no more then old penny stocks. I hope this is not true as my last year
of mining might only be for a few thousand dollars, time will tell and without
adoption of alt coins by the marketplace, countries and businesses the future
might only be very profitable for the coin owners/programmers and miner
hardware manufactures. These are just my own thoughts and conclusions.