I for one am super stoked that this is being ported to switch. I know it's expensive for what it is (the system and accessories) but for me the functionality seems tailor fit to my lifestyle. I play off screen 70% of the time, but also have decent enough TVs that when I am able I prefer to play on the a TV.
I almost bought both the Vita and PS4 versions so I could have this functionality, and the combination of those systems is more than a Switch for the same functionality with only needing to purchase one copy of the game. The functionality is actually slightly better, since my Vita is on an old firmware and I don't want to update it, I would not be able to easily transfer the saves. Even with the fastest official Playstation functionality the switch is much more convenient and quick then shutting the game down, transferring saves, and reloading the game.
I know I should support the company and buy all 3, but I can't justify that, so this is a great option for me!
After the disappointing Xenoblade Chronicles 2 I am super stoked to know there's a grind of JRPG in my near future, besides the upcoming Octopath Traveler which is very odd looking but overly traditionally playing.