I currently have a 64 GB iPhone 5 and really want an iPad (not mini). Due to budget constraints, I can't really afford to buy what I'd like to - a 64 GB iPad 4 with LTE connectivity. So, I figure that I can afford one of the 3 (or 4?) following options: 1. 16 GB iPad 4 (Wi-Fi Only) 2. 32 GB iPad 3 (Wi-Fi Only, Refurbished) 3. 16 GB iPad 3 (Wi-Fi + Cellular, Refurbished) BIG Stretch: 4. 32 GB iPad 4 (Wi-Fi Only) The two key questions are: 1. Is a 16 GB iPad big enough, storage space-wise, for someone used to a 64 GB iPhone 5? 2. Is LTE (Cellular) connectivity worth buying, even though I can't see myself needing/using it in the near future? Thanks in advance.