I am in the same dilemma, I am in Italy and bought the last gst with shw in Rome. The gst in both shw/ghw is completely sold out in Milan and Venice! I always wanted a ghw gst but Rome went out of stock as well. I couldn't give up the only last bag in Italy because I am leaving for Florence tomorrow and the SA told me that Florence does not have anymore gst as well.
But after reading so many threads, I kinda think fate gives me the shw because I am only 22, the gold is too formal/classy for my age. And I def am going to bring the gst around more as a day shopping bag. It gives a chic casual look and more laid-back feel. I also wear silver accessories, so it's gonna match me.
I may splurge on another Chanel in the future, like classic flap, maybe when I get older and it's def gonna be a ghw. For now, gst should go with shw!