If someone give me only two options invest my money in hyip website or put my money in mining, i am sure i am will choose put my money in mining bitcoin. Although mining also have a risk but better i choose it rather than hyip. I think hyip is not good to do. Many peoples was scammed in hyip and loss a lot of money.
Risk exists everywhere, difficulty mining growing. Requires more powerful equipment and more electricity costs and the price of Bitcoin can always go down to the level of unprofitability, it is as lucky.