Real world use cases for litecoin are nonexistent.
People used to use it to move funds quick(er) between exchanges. Not sure if this is still the case.
I actually accept payment for miner repairs in both bitcoin and litecoin. I would like to see the local bitcoin ATM also do Litecoin, it would be handy to turn it into money for parts like I can do with bitcoin, the fees are lower, and the transactions confirm much quicker. Thus for smaller value transactions (under a K or so) it would be quite useful.
C