64Gb here, read my thread about how I preordered a 16gb then waited in line to swap for a 64gb. Hours of waiting was worth it, no worries about storage, increasing app size with 64 bit and higher res apps. I have plenty of storage. Now to break this habit of deleting everything at the end of the day as I did with my 16gb iPhone 5.
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I got the space grey, wish I got gold. Black is boring and yes the space grey is so light it looks no different than silver.
Well I was looking at this case and it seems to look really good with the white face vs the black face. So I was thinking of going with the white/silver iPhone 6 and this case in black. Also what thread is this that you're referring to?