No marketing/promotion for Litecoin, means no demand on the market. We need someone like Elon Musk to promote Litecoin so it could soar all the way to the moon. Otherwise, prices will stale as people focus on other big players on the market. What matters is the usefulness of the blockchain in question.
So far, Litecoin has done its job well as being an alternative cryptocurrency to Bitcoin focusing on high-speed transfers at a fraction of the cost. It's been relatively stable since it's inception, thanks to its decentralized and censorship-resistant design. Litecoin might be able to last a lifetime if the community continues to support it. Price per coin doesn't matter as long as the coin is actively traded on the market. We'll see how far Litecoin will go as the competition becomes fierce in the crypto/Blockchain space. Just my thoughts

Dogecoin didn't go out and ask Elon to promote doge, nobody did, it wasn't really something people could do, you could reach out to Bill Gates today and ask to get litecoin promoted and you will get absolutely nothing at all. Which is why I think it is quite important to realize it was all organic and it got hyped, hell even if Elon promoted doge it may not be interesting to anyone and could have gone unnoticed who knows, it is a lot of luck involved.
Litecoin may not have something like that at all, litecoin was never something too hyped or too loved, it is something old and has been around for a long time, probably oldest coin after bitcoin that is still at top 20 levels, and that is why it is getting attention, otherwise it is totally useless. Hell even the creator or founder or whatever he is Charlie ended up selling his litecoin when it went up, that's how much it is cared.