I honestly believe that it is, as it has consistently kept doing well, and many managed to benefit from such investments. However it is important to avoid the tendency of believing that it will be an easy thing to do, as like anything else, even though it is ne of the most reliable and ideal investments one can make, there is always the element of risk. Besides you need to be cautious in your decisions as well as analyse the market and not invest more than you can manage to risk.