NotLambchop is correct. The only ones making any profits are the chip manufactures. All these mining companies will be lucky if they cover their initial investment. The hash rate is simply going up too quickly.
The only mines that might make a small profit will be the ones in the places with the cheapest electricity. Washington State has rates as low as $0.02 a kwh. I believe BTC mines will move to those areas until ultimately they end up actually driving up the power rates in those areas. Mine operators will also need to be very efficient for their share-holders to make any profit.
The price graph for LTC is basically showing that its demand has fallen relative to BTC. Every week LTC is dropping. This means lower and lower dividends until ultimately only the hosting fee is covered.
Agree with everything in this post except the chip manufacturers part. If you think cryptx and crew haven't made a killing on their scryptx and sha based projects with these hosting fee's your out of your right mind.
As for litecoin, imho unless something innovative coming out of the litecoin dev camp relatively soon I fear this downward price trend will continue. Makes virtually 0 sense to ever mine LTC at this point given profitability ratios.