Cryptocurrency should be a currency and that is what Litecoin is trying to do. Honestly, in five years from now, if Bitcoin is a store of value, Litecoin is a currency, and Ethereum is a platform for dApps, that is fine for me. However, Bitcoin was originally supposed to be a peer-to-peer cash system (i.e. currency). So, it just feels the store of value explanation is just an excuse for its failures (to this point; hopefully Lightning Network will smooth things out).