just for the money or in the hope you will get rich out of the coins you've mined. So i prefer to hold them and wait for
the best selling price.
Although, the way to maximize your mining earning is by holding what you are mining, especially if it's a promising coin and not some stale one (Dogecoin for example is mostly stale, not fluctuating). At first, your earnings might be low in terms of Fiat currency but there's a chance the coin's price to vastly increase in the future.