Well the word never sell is not right, it must be why you should not sell your bitcoins as of now. And with the word, never and ever that clearly says that you are going to hold your bitcoins until the Earth explodes and why you are holding if you don't have some goals for it then don't get involved in bitcoin if you are just going to do that.
Thats right, there is a really big difference between never selling the coins and not selling them for a particular period of time, because if you say never sell them it simply means just keep them and never take them out, but not selling them now would mean that you should wait for sometime and then sell them as the price would probably go higher by then.
Bitcoin I consider as an object of investments therefore could not understand why he always kept. The time will come and I'm selling it. What are the reasons for this, I do not know. Maybe I just need money urgently. Or maybe just want to sell everything.