Just like the way most of us want to invest and cash out immediately lol. But then, if we you are in a big project and you see a glaring future about it, it's good to invest and let it grow, not only short and quick investment only.
Few coins are cool for very long term investment, I agree with you. But there is nothing wrong with making quick gains on some trade setups, speaking from the angle of a price action trader. Sometimes I see highly profitable setups with good R:R ratio and swing trade them for short term purpose. Thise doesn't mean I don't keep some coins for very long term.