on bitstamp would cost $25, but on gdax would cost 10, is this correct?
I know that at the moment the price of a bitcoin is $ 11700 on
https://coinmarketcap.com/, the fact of the different trading floors, the price of bitcoin is different, I think that instead of you see the price please See rates between BTC / USDT to compare and make your own. You also need reliable information channels so that you can have the correct information to avoid the risk of misinformation.