The key part being preorder.
So this morning, GAME Spain updated their site to announce they will receive Switch supplies later this month. less than an hour later, when I arrive to the store, all the Splatoon Switch bundles are gone, but at the very least I manage to preorder a regular Switch. Now, after a quite decent chase for the console, I just have to wait until it arrives.
Now, for Switch owners, what devices and accesories am I going to need for the Switch? I've heard that I can't charge the joycons unless I put them on the console while it's on. Even if I'll be getting a Pro controller, how do I charge them?