> But my point is that you need to recognize that in so doing, you are taking away the option of having other things, such as waterproofing, larger batteries, smaller/lighter phones, etc. There is no free lunch.
reply1. Waterproofing is possible with replaceable batteries.
2. Larger batteries are possible with replaceable batteries. In fact, replaceable batteries makes this easier. I'm old enough to remember when you could buy a bigger battery for your cell phone that came with a bulged cover to accommodate it. If you don't want that though, you will have the choice to avoid it.
3. Smaller/lighter phones are possible with user-replaceable batteries. You could even use a smaller/lighter battery, too, if you wanted
These options aren't being taken away. We're just adding another option.