Everyone will define bitcoin or refer bitcoin as best asset in the world due the kind of asset it venture into for investment, so therefore I cannot refer bitcoin as best asset because it's a virtual currency, so therefore bitcoin has its own value likewise how other assets have their own value, so it depends on your ability to understand your areas of asset, example I referred landed properties kind of asset than bitcoin kind of assets and the reasons is best known to me.
Many people are too excited to invest in bitcoins because they expect big profits in a short time, many people think that with bitcoin they will be successful or rich, unfortunately they only follow opinion, when they see prices going down they panic and sell bitcoin at low prices or lose, before we enter, make sure to understand the risks.