Welcome to the site! There are also WiFi only versions, if you don't want to lock yourself into a contract with ATT or Verizon. I personally use a Verizon MiFi which lets me have a wireless hotspot any where I go, that my iPads can use to access the Internet. The nice thing about this choice is that the iPad is $130 cheaper because you aren't paying for the 3G radio in it, and I also can have 4G speeds on my iPad when I am in 4G coverage with my MiFi!