Once LTC stops being dependent on BTC in the exchanges it should takeoff, it's more stable than many of the other currencies, including BTC. Also it has better potential for mining since it's immune from ASICs, once ASICs are commonplace, scrypt currencies will be the only profitable ones out there in reach of regular people. BTC is more supported because it was first, but as time progresses, I think we'll see more support for other currencies.
I find it amusing that people still say that litecoin is immune from ASIC mining. When it was originally launched, it was purported to be immune to GPUs, FPGAs, and ASICs. Then, someone figured out how to mine it with GPUs. But everyone still said hey, at least it's immune to FPGAs and ASICs. And then someone started talking about how they're designing an FPGA system for it, and now everyone's saying it's still immune to ASICs. The magic of litecoin is that it's LESS amendable to these types of mining than bitcoin. Not that it's IMMUNE. As in, you'll get less advantage from them. But you'll still get a boost. What scrypt HAS achieved is the possibility of EXTENDING the low end mining of a coin, not the INABILITY of a coin to be mined by the higher end hardware.