The only one I have faith in now is bitcoin. I bought into a few alts when I started but they all failed me and was left dissapointed with the false promises and hype. Now I only think bitcoin has a future.
Well i would have thought the same, but i think there is room for others.
I do agree that alot have been pumped and then dumped by speculators, alot have no innovation.
Coins such as namecoin do actually serve a useful purpose, so its safe to say that these will be around in the future.
Dont really know what will happen with Litecoin, there are lots more options for investors now, i dont think that POW coins are sustainable in the long term either, too much computing power and electricity being consumed, i can see that mining BTC will be unprofitable if it declines much more.