Why you need to research your mining opportunity before parting with your hard earned cash.
There are loads of mining scams so beware, do your homework.
Click this link to see the top 20 miners on the block chain https://btc.com/
Click this link to see the rise in difficulty https://www.blockchain.com/charts/difficulty
Click this link to see the stats of the top 20 mines on the block chain https://btc.com/stats/pool
Cloud mining is also an option but some cloud miners are closing down their miners as it just is not profitable anymore, so do your research before you sign up.
The profits come from the ability to mine the blockchain. if you do not have enough hashpower you cant win and make bitcoin. Correct me if I am wrong, but all Bitcoin transactions are registered in the blockchain, nowhere else, so if you are not mining Bitcoin in the blockchain, what are you mining?
If you need more info,
Send me a mail http://bit.ly/2LzlYX3