Once I fell into such a trap. Prices for many altcoins rose at the end of 2017 and the beginning of 2018. I holded my coins and waited more and more. I had a big paper profit. Then the endless fall ...
You cannot hold your assets indefinitely. You should be able to make a profit on time.
The ability to buy an asset on time and then sell it on time is a whole science. I am just starting to master it, but of course you are right the asset should work. You cant buy it and keep it on your wallet all the time.