Well, keep in mind that all bronze isn't created equal. Some bronze looks very different than gold IIRC, so depending on which type of bronze was prevelant in a particular area, gold could still stand out as a sign of wealth.
But this is all from memory so I should probably shut up now
Tom
"WHERE ANGELS AND MARINES FEAR TO TREAD, THERE YOU'LL FIND A CORPSMAN DEAD."
Written by a Marine on the back of a dead Corspman's shirt in August of 1942.
I am humbled to have been able to call myself one of them.