I'm hoping someone can chime in to this, but putting the American market aside, is it just me or is this extremely marketable to the Asian market? Most of my Asian or Asian American friends exclusively play games on their phones. They play a wide selection of MMORPG to RTS games on their phones daily. Asians value games that are more repetitive (like EXP farming or turn based games, such as FF) and have great character development. I expect they will be receptive to a hybrid portable gaming system (not sure what to call this). [1]

Secondly, I'm surprised with how many people here find that the Nintendo Switch overpriced. We're all comparing the pricing to consoles that are sold at a loss (such as the PS4, they're essentially subsidized by the gaming industry). I bought a 3DS at about $200. For $100 more you get a tablet and console in one. I'm willing to bet like the 3DS, you'll be able to use this as a ad-hoc tablet for browsing the web as well and use it to play movies. I would jump on this if I had more time to game.

[1] Completely based on my opinion and might be subjected to cognitive bias and dissonance