I have never tried mining. As I begin to read what should be done to begin, so my eyes are closed)))
To each his own. Someone gets it, but someone buys it. But we are all part of the coin community and must support the team by attracting new members to the community.
Sometimes more can be obtained on the exchange. If time to sell, and after a timely purchase. Swaying on the waves is useful.
It is not always possible to guess the right moment.
It happens that you sell, but the price continues to rise and does not fall below the price at which you sold it.
When the price so much fluctuates up and down, then playing the exchange is the same as playing gambling. Regulated markets and then do not differ much from the casino, and here so there is no difference at all, only shows less)))