Instead of selling Ethereum at 100$,why not buy more, I believe Ethereum is worth more than that both in the short and long term. It will not fall that low anyway
In your words there is truth. It is not always necessary to look at the price that is now on the market, it is much more important to see the value in the product and in the value that will be in this product in the future, and if the values are higher than the price one can expect that in the future the price will be higher.