Obsessive iPhone Disorder
When someone is so obsessed with the iPhone that they're already planning their next upgrade, even though they just got the new one.
I just got the iPhone 15 and I'm already thinking about the iPhone 16.
I'm saving money for the iPhone 16 even though I just got the 15.
I already have the iPhone 15, but I'm still saving up for the 16 because I'm obsessed.