I think the advantage of having is that you can make huge profits by long term holding and learn some knowledge about blockchain, besides, we can know some friends who are good at investment, and we can get more ways from them
As it is one of the way online payments, its continued price increase in the market is its ultimate and greatest advantage. Without hard labor it gives you an oppertunity to earn big amount of money which you cannot earn easily with your regular job. You can also save it in your wallet as long as you want to and just sell it when the price is higher or whenever you want to depending on your needs.