Im just curious, what do you need all that space for? I also would like an SD slot as well, but i also never found i need the space anyway. I will always go with the 256gb since the 512 or higher are ridiculously priced. I cache like 20gb in music from my music server, about 50 to 75gb in apps and games, and the rest is for photos and videos I take. My phone is almost 4 years and only now is it getting full, but I can just remove the pics since I back them up to my NAS.