Well there are disadvantages to offering MicroSD support, actually. It is a source of errors; just visit the Galaxy S3 or S4 forums and search for the number of threads involving issues with SD cards not working, or issues related to the SD slot. It's also a security loophole for any phone. As a medium they're outdated; slow, and unreliable. It's easy to lose all your data if you lose the card or it becomes corrupted. It's not officially supported by Android either, and I was less than happy with Samsung's "hacking in" of them on the S4 - many things about their implementation wasn't ideal.
I'm not getting another phone with one again for the above reasons. I also don't like that they could be used as an excuse to pack less internal memory in (which is faster, more reliable, safter, etc). It was a big problem on the S4 when it came to app storage. 32gb really needs to be the standard these days.
And the reason Samsung is dominating in sales is advertising, not because they offer SD cards. That's a very minute feature in the grand scheme of things.
For me, one of the nice things about the S4 was the rounded corners that made the phone comfortable to hold and gave it a sleek yet soft design. I can't stand holding phones that have those hard corners and the S5 seems to be one of them.
While I understand what you are saying I disagree. Until we see internal storage reach 64GB or higher consistently, data plans become reasonable (never going to happen) then SD cards have value and I have never had a card fail on my phones, as a standalone card in a card reader yes, but that is a Windows device issue. Google isn't the smartest kid in the room just because they dropped SD card support, they did it based on users being too dumb to manage them and then FAILED to actually implement anything reasonable with internal storage. Google has stumbled far more in Androids development and has a lot they should be asking forgiveness over including dropping SD cards.
I agree. not sure what the design team was thinking with dimpled back fake leather look. It does not look appealing. Maybe these are just initial test units though.