i got the non-pro version too last year....slipped in a 128gb sdcard but barely used it....since most media nowadays just either streaming or access via my NAS...
so really, a media center with huge local storage is pretty much pointless (IMO).
Unless you are planning to use it to play android / geforce now games such as Half Life 2 etc...even then, the experience is not as great using the joypad. I hae 2 joypads (1 from Shield tablet) and they are just sitting in the living room collecting dust...lol.