Well if you do your own research and buy Bitcoins from an exchange like Coinbase then I think if you hold till the price go up, you will win (assuming that you are a long term investor). However, if you are referring to a Bitcoin investment where you give your fiat currency and some person or group manage your investment saying that they have invested the amount in BTC and will give a high return on your investment, I would be extra auspicious as well as cautious when putting my money! Be careful and do your due diligence before investing your hard earned money.