Q: Where in the "real world" will you find MONTHLY returns like that?
A: No where.
This is why I feel investing in bitcoin is a great investment, beyond all the other benefits that bitcoin will provide.
People in the Bitcoin community are very short sighted when it comes to returns. 1% per day sounds reasonable...
5% per month sounds low? 
If we could get 5% per month, we'd all be rich very, very soon.