I noticed that there are many variations of the GST. Some of them are not fully chain strap, i.e. they have a piece of leather at the part where the strap sits on your shoulder (attached photos). My question is, is there a difference in price between them? Which do you prefer? Also, I recently saw a cream patent Chanel tote on Yahoo Japan that I'm wondering whether is the GST at all or not because it looks bigger. Any help is appreciated. TIA!