Litecoin is a valuable coin, and can take the place of silver, as bitcoin is looked as gold. Litecoin can survive for a long term, but comparing it with BTC and ETH is not a wise idea. BTC and ETH are standards in crypto despite XRP is trying to take the second place for now. Buying Litecoin in bulk will be profitable when the next rise comes, because it has been one of the top coins before now.