Coinbase price discrepancy?
When you buy from Coinbase, you are buying from a service provider, not from a person who is selling....so, yes, you will be paying more.

Don't ever actually buy from Coinbase (or sell); they mark up the price that is set on THEIR OWN exchange, GDAX. It literally only takes you seconds and zero cost to transfer your funds from Coinbase over to GDAX to trade yourself at a better rate, so there's no reason to take the Coinbase markup.