Selling everything is not an option because its gonna be profitable soon or layer, this means that you are just throwing away money and that is not smart at all.
I would never sell them all....
i am also not in favour of selling every thing. i will like to sell only those things that i do not need any more, and that can be useful for others, therefore selling those things for bitcoin which are no more in my use is ok.
Usually when you do not need it anymore that would also be worthless for other people, if we talk about bitcoin it can never be useless for a real investor as we believe in the value of bitcoins and here we are hoping for the price of bitcoin to increase in the future therefore we invest in the long term.