FWIW, I pulled just north of 100Khash/S of processing power from Litecoin a couple weeks back. The value of LTC on BTC-E has been plummeting consistently, and it's finally driven home the point that it's really pointless to get seriously involved with altcoins. For now.
Feels like the project has run out of momentum.
Picked up a 7970 and added another 622MHash/S to my Bitcoin farm.
Bummed

Was hoping Litecoin would be a serious "silver" to Bitcoin's "gold", but don't see that happening.
+1
Market depth is low, but LTC was one of the few alt's that made the cut on BTC-E. As of Jan 30, they're going to halt trading on GG, I0C, DVC, CLC, IXC, RUC.
So there's still hope.
https://btc-e.com/news/54