Its never late to invest, we are still part of the early starter of cryptocurrency, Thou I have some regret because I did not get involve early like a friend, but it never late, Litecoin too will definitely get increase over time.
The price of bitcoin is extremely high to invest at the moment,wait for the market to settle down and then plan on purchasing,there is a fork coming up and no one can predict how the market will react after the fork and so you must be really careful in investing your money in it,there is nothing wrong in investing in litecoin but the issue is there is not much push in the coin after the fork .