Yes altcoins are very profitable but it's need a stable price of bitcoin. As soon as bitcoin become stable they will give you profit. So don't sell your coins maintain them tightly.
At first the gold was known as the valuable thing yet now the bitcoins is the golden thing on the planet in light of the fact that the costs of bitcoins is as yet going increasingly elevated yet the costs of gold is diminishing and the gold can't be protected like bitcoins that is the reason bitcoins is superior to the gold.