Right, that may well be. Which suggests a forward indication as they take about a week to award the coins bought there to the Coinbase cloud wallet, so not even transferable elsewhere.
Mt Gox: $232.80
Coinbase: $226.17
Bitcoinaverage.com: $222.62
Bitstamp: $218.93
Coinbase is now closer to Mt Gox pricing than Bitstamp pricing.