Well, what's interesting about Litecoin lately is that it has hovered between $42 and $47 during this latest Bitcoin run. So it would seem that, if you foresee a pullback in Bitcoin, you would retain USD value by putting Bitcoin in Litecoin.
But yes, that someone has a good point. If you want to be able to trade quickly, having USD in something relatively stable like Litecoin could allow you to jump in on a Bitcoin pullback, if it happens.
Personally, I'm holding my Litecoin hoping it will get somewhere of a 50% gain, but who knows. :D
Oh I am sure that it will eventually. It is one of the short list of coins with real technology and usefulness. But right now most of the trading crowd finds these boring and they only want to ride the high flying ICOs that may not have any substance. But as the market matures I think Litecoin and other "boring" coins will come into their own. So yeah I might buy some Litecoin as a sort of base which I can trade if I need to but otherwise can hold for the long term.