Exactly, Litecoin is valuable to the scrypt miners at least and is the second most known crypto. I don't know why people think there can only be one crypto out there with value.
... and why they all gather in Bitcoin Forum > Other > Alternate cryptocurrencies is another unsolveable mystery!
Anyways, my 1st prediction of Scrypt ASICS introducing a similar development as seen from SHA256 ASICS has proven wrong. Conclusion: Mining is not the main influence factor for value