bitcoin is always an best choose for the long term investment. It was already decided by many bitcoiners when bitcoin price started its competition with gold. right now its scale is further most ahead and unto the end of 2017 the price can reach 2000$ as said by some popular elite members of trading group.We sure should buy some bitcoins as they are really going to the moon
The price is possible and competes with gold, but bitcoin is not a stable currency and investments for a longer period are more dangerous than gold.
It is not dangerous, the investment through bitcoin has increased risk than investment through gold because of the volatility as well the growth experiencd in a very short time period. Several times it has gone beyond the price of a single ounce of gold but haven't stayed for a long. This time too it has crossed the value and can expect to be staying for a longer time period.