It is a core gaming device. It even looks like a portable Microsoft would make or an Nvidia tablet. If you have showed me the device a year ago and asked which company made this, I wouldn't have guessed Nintendo.
If you can't get into things like 3D Zelda, Splatoon, open world Mario (like Mario 64/Sunshine), Xenoblade, and weird/nichey Japanese games ... Switch isn't for you.
There's not going to be a ton of motion games either for it because how are you supposed to play those games on an airplane, train, or bus? How do you play multi if the second person doesn't have their own $80 Joycons? Most games are going to mandate standard controls.
And yes the Joycons have a ton of buttons on them, even in sideways mode, there's plenty of buttons for just about any game type (6 action buttons + clickable analog stick).
It is a portable system so the hardware is held back by that, but even as a portable it's like Playsation 4 of portables, it's way more powerful than any portable dedicated game sysetm before it.
