I find it all depends on your investment. In the old days, people would mine on their own hardware. This becomes costly on hardware and power consumption (miners use A LOT of electricity).
Here's a popular mining calculator. If you adjust the values, you get a pretty accurate assessment. If you are cloud mining, there would be no power costs, since it's not your hardware doing the mining, thereby improving your profit over the long term.
Hope that helps! I'm still pretty new to all this but slowly wrapping my head around a lot of it. Steem on!