Those deals are merely deals from owners to another owner of an altcoin and the fact that NO ONE USES THEM TO BUY ONLINE is there. I see bitcoin being used by people to pay for goods and services online(particularly in marketplace section of this forum) but I rarely see people buying goods and services using altcoins such as Ripple and bitcoin cash. I also wouldn't call altcoins real currency if I were you because they are used merely as a speculative tool, not as a currency.