I think gold looks better on the Mono, and that it would be a tactical error if LV switched to silver as this line has an unbroken consistency that stretches all the way back and that is one of its charms. I actually think the "old" gold ones would become more valuable over time -- think of all the Japanese customers who don't want to look like they just got their LV yesterday. The more I think about it the less likely I think it is to happen for the Mono line.