I spent most of my time doing research on many altcoins, their old price to the present value and i find out that even if you sell your tokens today leaving few tokens worth few dollars for many years can worth something. For example if you left 9$ worth of bitcoin in your wallet since 2012 you would never have imagine what it will become today, in jan 2017 you can buy 5000 pieces of Ripple at 0.007$ which costs 35$ and in jan 2018 a XRP cost 3$ which turns 15000$, there are many examples like this on CMC, remember Tron too? My point is its bad selling off all your coins, if you needed money that bad always leave coins and tokens worth of few dollars left in your wallet just in case
You know what is bad? The timing. Besides you don't know and no one even knows what the future holds. For what is certain right now is that, you have to do what must done right now. Well, bad market, everything is in favorable price to purchase then purchase though if you are a man of principles, and you have certain strategies to be executed then stick with it. And let what might happened in the future, and so if the market goes up then sell. That is just how it is.
It's all depends from how you supposed to execute your position. It's no arguments regarding to this matter, if you can keep portions of your assets and leave it for some years inside your wallet, no one knows what will be the value of your coins after. If you don't mind letting your money to stuck and let future dictate the fate of your money.