I see. My other country's passport of standard size was almost maxed out at the time of expiry. Mostly due to US visas etc. I don't think my new US passport will have even a third of pages used, unless I explore Asia and Africa more in the next decade. But then large book is a free upgrade, why not? Given same processing times. It's like saying no to all beatiful food at the buffet I hope it will remain the same price in the future. Only if they start charging more, I may go for regular one.