Yeah this is true - I'm going to be accepting Bitcoin and Litecoin at a few online projects soon because I really want to help the Litecoin economy as well. There is a real lack of places accepting it at the moment but with the BTC price constantly rising at the moment (and the block halving) it might become a better option for some people just because it is cheaper. The poor mans BTC if you like.
At this stage LTC can be traded for USD, other currencies and BTC so the fact it can be traded for USD means people are attributing a real value to it which is pretty awesome. So I suppose people are already attributing it with a real value but yes I agree it needs to be able to be directly exchanged for goods and services as well and I believe more people should be doing this (accepting Litecoin) if they really believe in the future of cryptocurrencies.
With 80 000 000 being in circulation in an ideal world LTC should stabilise (or keep climbing in relation to USD price) at one quarter of the price of BTC right? It has only been a year so maybe like BTC it could be a big year ahead for its second

Did the other failed cryptocurrencies also have about 80 000 000 to be released? I.e did they fit in logically with how BTC was conceived and to complement BTC as a currency to have four times as much in circulation as BTC?