One of the biggest reasons that every good rooter roots is to remove that stank bloat ware. You know the apps that carriers add that you never wanted in the first place which undoubtedly line their pockets. We like to remove these apps first thing, but AT&T has a different philosophy apparently. The latest OTA update for the AT&T Galaxy S5 adds an additional 47 MB in bloat. On a phone with only 16GB of internal memory that is a BIG deal. Bloat ware not only takes up space, it also bogs things down slowing up the UI.