Ripple very expensive not in these days we will see a correction to the support zone. I think price still growing because of incapable people who don't understand the technology and blockchain network. Ripple is centralized and if you trust centralization why don't you believe bitfinex binance or other services. Their centrelization not a secret 
The price is going up because of the Japan/South Korea cross-border transaction test. If it get's full adoption (which is looking likely), it will probably see another big boost after the holidays.