ASICs are yet to penetrate well, thanks to the delays. Till then GPUs would still work. Mine out till you can.
Here is the thing, after BTC's success many such online digital currency came into existence.
As soon as BTC gets enough traction, there would be some regulation to handle the growing digital currencies. There are chances that not every such currecny would grow like BTC did. So putting time in mining should be well calculated. If you think LTC would grow then go for it, but if not then no point putting time and money in mining for it. Better mine, earn, sell off and move on.
Here is the thing, after BTC's success many such online digital currency came into existence.
As soon as BTC gets enough traction, there would be some regulation to handle the growing digital currencies. There are chances that not every such currecny would grow like BTC did. So putting time in mining should be well calculated. If you think LTC would grow then go for it, but if not then no point putting time and money in mining for it. Better mine, earn, sell off and move on.