I bought mines digitally, but... Is it really sold out in that many places? Wow, didn't know demand for this game was that high. Perhaps Nintendo/Monolith underestimated demand themselves? It's a nice game, but it has some issues, namely audio bugs and the text is way too small; There should definitely be an option to increase text size. I didn't think the story was all that exciting, either. It's a great military sim, haha. 8 divisions, each with their own goals, you're an operative. And playing cooperatively was fun. Quests felt to MMOey, and while that was true for the original Xenoblade Chronicles, it felt even more so here, I guess since all there really is to do is quests and quests. And exploring, but still, lotsa quests. Some main story quests also felt like a drag at times. Things do get a bit more fun after you acquire your first Skell.
A word of advice if you're just going into the game. Take some time to get acquainted with all the menus and options you have at your disposal. It'll be overwhelming at first, but you'll likely be a lot more effective in battle later.