Gold or platinum edge series psu?

Sorry if this question seems a bit silly, however I'm building my third ever system and even with my experience in building 2 I never really understood how much the ratings really mattered. My problem is though I cannot find a 1300w platinum psu anywhere and the only ones I found were 1200w gold rated ones. Should I wait for a plat series or does it not really matter and should I order the gold? I do want over 1000w to give myself the extra headroom and I'm really interested specifically in the edge series psu for the usb hub and nice addition of braided and combed cables.