If you are trying to build up a retirement nest egg then what is the perfect investment vehicle in order to do this? That depends on all of the relevant factors and considerations in your specific case. Every retirement portfolio may look different, and despite this they may perform well at times. One of the best places to put capital according to some is in gold and other precious metals, because of all the advantages that they can offer.
Gold tends to hold value very well over time, and any fluctuations and price changes tend to even out. This vehicle generally helps prevent against loss and hedge against any changes in inflation and other economic factors, and that is something that most other sectors can not offer. Since this class has always been prized it is easily recognized on a global level, and it will never be viewed as worthless. That makes it a popular choice when it comes to long term holdings.
Portfolio diversification is also a big component, and this strategy is used in some form by almost every investor who spends capital. At the most basic this is based on the fact that while some sectors are down others are up, and when you have holdings across a wide range of asset classes and sectors you are more likely to see small gains and to avoid losses when all of the performance is averaged. That is important when you are planning for retirement, because these are funds that will be needed later in life.
Currency devaluation risk management is important as well. Some vehicles have excessive risks because they are closely tied to the value of the US dollar. In the last 100 years this currency has seen a decrease of around 95% in value, and that means that the same $1 a century ago is now only worth five cents today. The reverse is true with gold, and an ounce is worth far more today than it was in 1913.
Only you can decide what the perfect retirement vehicle will be, and your decision may be completely different from the one made by someone else. In general it is not a good idea to put all of your capital into a single sector or asset class because this could increase your risk exposure instead of minimizing this possibility. When you hold a diverse variety of picks that includes gold in sufficient amounts then you will generally see more successful results and a larger final portfolio value.