So I will order a new 9.7" iPad Pro later this week, and I was wondering whether you guys think the cellular option is worth it? Here in Japan, all SIMs are locked. I held out hope that the Japanese carriers would use the built-in Apple SIM, but apparently they all use the SIM card slot. That's bad news for me since I travel internationally quite a lot, and I wanted to swap SIM cards as needed to get data access. Inside of Japan, I could use tethering, though, so it's not clear if it is worth it in the first place. Was it worth the money for you?