I buy a new iPhone and iPad every other year. For instance I bought the iPhone 5, skipped the iPhone 5s and bought the iPhone 6. I bought an iPad Air and I skipped the iPad Air 2, but I will be buying the Air 3 or whatever else comes out at that time. I'm wondering how often others tend to upgrade and if they see a big need for it in the future? I guess this might depend on your needs, but with what Metal has in store for the future things could be quite exciting if more developers embrace it and focus on quality 3d graphics that these new devices are capable of running.