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.
You are lucky if the altcoin you have chosen still does have a value after a few years. But you can't be lucky most of the time right? you can simply expect that those coins you've left can be worth nothing instead of 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 can be correct and have a point with that matter but it's not like it will happen again. You can expect and hope for the same but this time it's going to be different and IMO, I'm not expecting that the market will be the same but there's a valuable information that you have said. And that is to keep or accumulate as much as you can although your example is too low.