I haven't heard of anyone I know that needs 64GB plus. All buy two people I know with iPhones have the 16. Two have the 32 but that was only because they needed a phone and Verizon didn't have the 16 in stock right then. In my old Thunderbolt I had 8 internal and a 32 sd card, and never had more than 20GB on it. My Gnex with Verizon had 32 and never used more than about 18, and now my 16GB Nexus 4 hasn't gone over 8GB used. I don't stream anything and I don't see a need to have movies and thousands of songs with me at all times, nor do I need to store hundreds or thousands of pics either. I would be willing to say 75% of people don't need or use more than 32GB, and most are fine with 16 on a phone. Even the iPhone 4s that had the 64 option didn't sell that great, most 4s's sold were the 16GB.