I currently have a Space Grey 6+ 16gb. I like it but with 4gb free, I feel I may need 64gb. I am 5 days into my 14 day return period, so I have been calling occasionally to different stores to find a space grey 64 6+ but no luck. I did find a gold 64 at Best Buy tonight and had them hold it but I called back and told them to let it go. The gold has been growing on me but more than the gold back, its the white front that is making it hard to decide. Well by Nov 20th Ill either have one of the 64gb colors or return the 16gb and roll back to my Moto X until Apple can get caught up.