Agree. Litecoin is strong as a cryptocurrency for daily payments, but it doesn't have the potential to grow into something huge in the mainstream world like NEO. NEO is a powerful smart contract platform which can be used for many other things which are not possible with Litecoin. You can interact, or create your own decentralized applications and tokens, which are secured and protected by blockchain technology. Litecoin could do the same if it adopts the Lightning Network in the future, as such scalable solution, enables smart contract functionality with sidechains.
Until that happens, I believe that NEO will continue to grow both in terms of development and price. Many people haven't realized the true potential of NEO yet, but once we start to see some serious startups and companies adopting NEO for their ICOs, you can rest assured that everyone's attention will be into such cryptocurrency. Once NEO grows as a solid smart contract platform, then it would be able to compete with the Ethereum platform.
While both NEO and Litecoin are good investments for the long term, NEO has more potential for growth than the latter simply because it's active in development, unlike its rival. Just my thoughts