I would suggest staying away from gambling site investing , The past has shown that they are more riskier than any form of investing specially because you are essentially trusting your coins with an anonymous third party. Just for the 1% you will have to risk it all and might not even get anything back.
The same thing as investing in a cloudmining and the risk are greater there where you have to wake up sometimes just to see that your payment is not arrived yet. It is not risking all to get 1 %. 1 % is the minimum that you will get since that is what house edge is for and ofcourse most sites get more than it
Consider the fact of a famous casino I know. It has had around 10K wagered in the past 2-3 months or maybe more. And mathematically there are supposed to make 100 BTC in that time, and they did make around 150ish.
Now even though they did make money, but imagine the risk you are taking by letting your money stay there. There has only been Justdice till now, which has ended well for investors. All the others, I believe will not stay for long and mostly haven't done so. Its the same case for cloudmining. So I would just suggest staying out of both.