To me there is still not any opportunity legit enough that induce me to invest my Bitcoins. Bitcoins are very prone to scam, once you send Bitcoin to someone, you can't claim it back unless one personally know the receiver. So better stay away from Bitcoin investments, soemething relatively better is altcoin investment, trading,etc.
I would have to agree with you on that one. I just haven't found any good opportunities that are actually decent. There are definitely some out there, but the turnover is so little that there is no point of investing in them with the risk of getting scammed.
There are some well-known sites you can invest in and make a decent profit. For exemple you can lend and trade on Poloniex, you can invest in Just-Dice, you can invest in some ICO (taas, Iconomi, etc..).
You just have not to put all your eggs in the same basket. Just in case it goes wrong.