I would say it's utility. Most cryptocurrency do not have competing DApps or services to use #cryptocurrency. Whenever the average person buys it they always say now what?
It is a psychological challenge to understand the utility of #bitcoins#DASH#cryptography as even most speculators are not using encrypted email addresses...
Someone would have to find and prove the average inflation rate of fiat currency and show that Bitcoin Cash average inflation rate is clearly lower. Plus, the benefit of the difference