That's one scary part of this whole cryptocurrency world. These exchanges are making tons of money in transaction fees, and they are completely unreliable. Coinbase is worse, price of Bitcoin at coincap.io is $ 2696, on Bittrex is $ 2649, and on Coinbase is $ 2705. but If I proceede to buy a Bitcoin on Coinbase than the price is $ 2719, plus the 1.99% fees if from bank accout and 3.99% fees if credit card that they charge on top of it. I appreciate the idea of decentralization but I think there needs to be one reliable datafeed source, if its possible.