And perhaps most important bitcoin sell when prices rise. Myself sell bitcoin every month I get from the signature campaign and trade. If prices go up no matter how small I immediately sell it, but if the price drops I'll hold it.
Well, it really depends on what the goal of the person is. Some people buy just to hold long term regardless of price fluctuations. Selling every time the price goes up by $10 - $20 can be stressful and is not for everyone. Personally, I have pre-set sell orders that are triggered when what I consider milestone prices are reached. Like I have sell orders at $750, $900 and $1,100, so there is nothing I have to do

For me, this is a lot easier and hassle free than having to constantly monitor the price.