I have powerful enough ASICs (a few Innoslicon machines) that the probability for me looked attractive. Plus, I was mining in a pool and found some blocks but didn’t get the full reward becuase of the pool.
I detailed my setup in this post: Solo Mining vs Pool Mining. TL;DR: I run my own Litecoin node on Google Cloud Platform and use a Node.js based Stratum server to connect my machines for mining.
It is not profitable to CPU or GPU mine LTC and its just profitable enough to attract me to do it with ASICs but like I say in other posts, I’m getting more out of the fun of it than I do the revenue from the monetary reward.
Just this morning, I converted 1/2 my LTC holdings to BTC. Also picked up some IOTA.
One thing Litecoin’s got going for it is fast transaction times. Waiting for BTC transactions to go through BLOWS hard.