For me the main draw of consoles is simple convenience; I plug it into my TV, and it plays. I don't need to worry about drivers, upgrading parts, tinkering under the hood or any of that, which is frankly all Greek to me since I'm not computer-savvy.
And also, I like leaning back and relaxing on the couch rather than hunching forward in a chair.
I am a huge fan of racing games, and the analog sticks are much more suitable for that than mouse and keyboard.
Bet with Intrinsic:
The Switch will outsell 3DS (based on VGchartz numbers), according to me, while Intrinsic thinks the opposite will hold true. One month avatar control for the loser's avatar.