So let me see if I understand this. You say you're excited—enough to likely preorder ASAP. But you're not sure about losing functionality that you admit to love. So this comes down to blind faith that Apple "thought [it] through," even though your own user experience suggests this is a drawback?
I don't know about you, but when I'm about to throw $1000 at something new, I don't put blind faith in any manufacturer, or even reviews by other people for that matter. Apple has been prone to make more and more polarizing decisions in recent years. Go back about 5 years, and you'll find most everyone on board with their decisions. Sure, there was some grumbling, as there always is, but people understood why changes were happening. You have to go back to the Motorola days to find a time when a large, large contingent of the user base was convinced Apple was doing something completely dumb. (And, I'll point out, that's a great example of when the blind faith in Apple was misplaced. Fortunately, they eventually fixed that mistake.)