Typical trading costs when using Global Prime is 1.3 pips spread which is quite competitive compared to the average spread at other brokers at 1.5 pips. (7binaryoptions.com)
On a demo, a trader can be profitable at a.5 pip spread. (binaryminery.com)
That makes the collection of bid / ask pip spread one profitable stream of income. (tradingmarkets.com)