First, let’s mention that the iPhone 5 costs just as much as its predecessor the iPhone 4S. Prices start at $199 for the 16GB model, and go up to $299 for the 32 gig iPhone and $399 for the 64GB version.
That is interesting because those $100 increments do not have anything to do with declining memory prices. While other companies like Amazon now have lowered prices on their models with more memory, Apple continues to go with a $100 premium. What's the gross margin on that? How about 93%. Yes, that's right Apple is selling you a gigabyte of additional memory for $6.25, while it buys it for merely $0.42.
Don't you feel that's a bit too greedy even for Apple? Android phones and even Windows Phone 8 devices are now both supporting microSD expandable storage (the much, much cheaper option), but iPhones remain the only devices to rely only on built-in NAND memory.