Although Litecoin has a lot of room to grow, it is not impossible to call it king of all coins. I think bitcoin is the king of all coins, and of course you can buy Litecoin at a low price, although some people do not Optimistic about it, but who can predict the future?
Bitcoin is being dropped by merchants because it is unusable. If Litecoin can take over as the main payment processor, it will overtake bitcoin.
https://www.financemagnates.com/cryptocurrency/news/litepay-litepal-two-new-litecoin-payment-processing-services-way/LitePay is to launch this week, and LitePal later this year.
LitePal is expected to be released later this year. According to the official website, users will be able to use the service with PayPal, Western Union, Bitcoin and Litecoin, and the fees will be bone chillingly low.
I doubt litecoin could overtake bitcoin in such a short time though.
And if anything, I think eth would be the first to overtake btc.