I think you were out of touch with nexus crowd dude. I remember going out to buy the galaxy nexus for the hardware & stock Android. The camera was poor though.
Yep, that 30 minute battery life was worth buying. Stupid Galaxy Nexus. Also stock ICS ended up being buggy and slow as shit, although that might have had something to do with the crummy TI OMAP SoC the GNex used also.
I have literally zero happy memories of my Gnex. Then I got my Note II and life was amazing afterwards and I forgot I ever cared about Nexus until just recently because the 6P looks dope as fuck, it's basically a flagship device and I suspect next year's N6 variant will be amazing with the SD820 and a camera that support OIS. I might actually have to weigh the decision between Note 6 and N6 (2016) carefully, the first I can say that about a Nexus in years.
Aren't sdxc cards fast enough? Hell the UHS II version cards are really fast for memory cards. How much of a difference do those cards have compared to internal storage speeds?
SD has terrible random read/write speeds which is what you need from an internal storage. There are extremely cheap laptops out there which use eMMC as their internal storage, basically an SD card with an internal reader, and the storage speed on those things is vastly inferior to laptops with have an SSD.
SDXC with UHS II have pretty good sequential read/write which makes them perfect for recording 4K video, although current phones are using bitrates which fit into UHS I (SDHC Class 10) anyways so it's a moot point unless you hack your phone's camera app to forcefully increase the recording bitrate. I think there are hacked versions of the Note 4 and 5 camera apps which let you crank up the bitrate and also remove the recording time limits, pretty sweet if you are rooted and really want to use your phone as a convenient pocket camcorder.
In general SD is amazing as a media storage expansion. No one wants to run apps off of SD and really you shouldn't try because it's slow as shit for apps and things get really flaky and buggy if you remove your SD and there are apps installed on it. SD is for media storage, it's huge and cheap and you can pull it out of your phone and stick it in your computer to transfer your videos because who the fuck wants to backup up to 128 GB of their SD's video and music into the fucking cloud and then download it to their computers.