Then its more experiment than practical. So for most people, its too much of a hassle. Im looking for a practical solution rather than leaving the house with my McGyver belt just in case I want to watch a video.
not to sound like a prick, but
if you leave your house and want to watch a video, you generally make sure that video is on your tablet before you leave the house.
even if you have a microSD slot or a few microSD cards sitting around, guess what? you still have to move those files to a microSD card before popping it into a tablet.
like i said in my previous post (and as others have said, and as common sense dictates), if you want a certain video on your tablet, you have to cycle videos on and off of it. you can't have *all* of your media on
any tablet anywhere, microSD slot or not, unless you want to bring along other hardware, whether it be a handful of microSD cards, or a thumb drive, or an external hard drive, or whatever. with every solution, there are "hassles" of swapping out something.
having a short OTG cable and a tiny USB drive attached to it is
absolutely practical for bringing along an extra 64GB worth of movies or music. i have a ~2 inch OTG cable and a small 64GB thumb drive, and they fit in any pocket or any bag you can't do that on an iPad...what you have on that thing is what you're going to live with until you get to a computer...most likely with iTunes, where you can convert files from .avi or .mkv to .mp4 or .mov, which are probably the only formats that iOS rolls with.
you can fit like 30 2GB movies on a 64GB stick, and if you want to watch without a short cable hanging off the end of your Nexus 7, you attach, copy and paste the movies you want from the 64GB stick onto the tablet, then unplug the 64GB stick, and you're done. you've just moved a movie that wasn't on your tablet, onto your tablet, on the go, without needing anything else, and you can still watch without anything sticking out of the tablet. i don't see why this is such a sticking point for you when in fact it's a killer convenience and feature.
you can shell out almost $900 for a 64GB iPad and you STILL won't come close to having enough space to do what you want to do, which is to have every single song and movie of yours on a tablet. you're still going to have to delete files and copy other ones as the mood strikes you, and you're certainly out of your mind if you think you're going to get 1TB tablets anytime soon.
**disclaimer** my entire argument is moot if you happen to own like seven movies and only want to watch those seven movies the rest of your life, in which case, yes, a microSD slot would be great if you only own a 16GB Nexus 7.