for $40, you could buy a pretty large USB drive, definitely far more than 32GB. you can tuck it right behind the tablet in a case, or tape it to the back of the tablet or just let it dangle if it's small enough. hundreds of GB of storage for the same price or less....with little to no nuisance. after all, I doubt many people will be holding a tablet in their hands for the entirety of a movie...so you can just plug the drive in when you want to access video.
what I'm trying to point out, is 32gb still isn't enough for a person that wants to use their tablet as a video watching device, especially high quality video. 32GB is still in that gray area. sure, 32GB is much easier to manage, but there's still managing going on. unless you plan on being unable to access the internet for days at a time, 16GB should be enough. and if you do plan on that, then you'd be better off with a USB drive, because at some point that 32GB isn't going to be enough either if you're consuming that much media on the go. so it's be simpler to just load up your entire music collection and tons of videos on a USB drive, rather than picking and choose what you can fit on the 32GB of internal storage.
maybe I'm just better with what I choose to store on my devices. I don't need even a 4GB mp3 collection for a 2 day or even week long trip. you couldn't even listen to that much music if you played it non stop for the entirety of that trip.
there's also another benefit of external storage. not only does it keep your internal storage clean, it also increases performance in multitasking since reading a movie while reading/writing from browsing the web from the internal storage alone, will split bandwidth between these tasks, especially if it's a 1080p movie. another gain is when you write files to internal storage while doing nothing else, they'll be more likely to be contiguous, which will mean the fastest read speeds possible. by reading from internal storage rather than writing to it, you ensure that your files remain contiguous. so install all your apps one at a time while doing nothing else while installing, then add nothing else to the drive. it will be running under best case scenario indefinitely. I treat internal storage on tablets like read only memory, and that keeps your tablet in top shape.