Quis89
Ambassador
I cannot see how something unused is better.
If I have 4 bedrooms in my appartments but only use 2, it's wasted space.
If I'm recently married and me and my wife will possibly have children we aren't going to move into a one bedroom apartment. We are going to move into a place that has space for us to grow IF we decide to grow. Why move into a smaller apartment only for your living situation and family situation to change a year from now? Then you're stuck.
You using 2 bedrooms means 1 wasn't enough, right? It would suck to have moved into a 1 bedroom (16gb) apartment only to find out that you probably should have went with 2(64gb).
This seems like a really simple concept to me. Protect yourself from the possibility of a lifestyle change that will have you using more of your device. If you limit yourself to 16GB you may find yourself upset down the line when you realize you actually need more. Especially since 16GB isn't really 16GB.