It's the only crypto currency some sites take as payment instead of card.
Correct me if I'm wrong but i have't seen any sites taking anything else so as far as I'm aware all the other crypto currencies have only ever been used for speculation.
And i believe how a currency is used is quite relevant if you ask me.
What do you mean? Even if you're talking about Korean exchanges only, they trade a dozen different cryptocurrencies - Ethereum, Bitcoin Cash, EOS, QTUM, Monero, ZCash, Litecoin, etc. Example:
The transaction fees are so high that it seems useless for anything but speculation at this stage.
Seems to me that it completely lost its original purpouse if that doesn't get ajusted somehow.
Say 1% of transaction value with a maximum of the current transaction fee maybe.