I don't care about the SD slot, but I would like a removable battery. This is the first phone I've had without one, and every other smart phone I've owned has needed a replacement at some point. I guess if an SD slot comes along for the ride, I wouldn't mind and might even use it.
I want a Moto Nexus more because I want a Moto X class phone (or what it will be in a year) for Nexus prices.
The only complaint I have ... so far with my Sony Experia Z Ultra phone/tablet is the lack of a replaceable, really, battery. The SD card is easily got at and I can see swapping out 64G cards for video use.
I love this monster phone. A very fast computer and not a bad phone. The ability to NFC to my Sony a7R, I will soon have, and both control it and suck pictures off of, both to my phone and any network is kinda sweet. The insane little Sony 6.44" HD TV I have in my pocket brings gasps all over the place. I do have a 3.2G BBC HD Galapagos vid loaded to elicit this behavior.