The advantage of bitcoin is the high price.  When we bug the bitcoin at low price and we can sell it at high price. The profit is huge when compare to invest this is the advantage. In short time itself we can make more profit at the same time you can hold it for long time will also give more and more profits than you invest. The disvantages is depends upon the market rate.  We have to sell it at right time to get more benefits otherwise it leads to very huge loss. So always we have to keep an eye in the coinmarketcap.com to see the prices.