Hi, how is the recent trade-in value for iPhone if I have a 15 Plus/Pro and trade-in for the new model this Fall or next Fall? For the MacBook Pro it is like 1/3 the price for the next model. Not sure about the iPhone. I need a new phone now. I like the big battery of the 15 Plus but most nice looking cases are for the 15 Pro and Pro Max only. The 15 Pro has smaller battery capacity. With the price of the Pro Max, I do not buy it.