These were my previous thoughts and I am putting mine up for sale this week, has been unplugged for a week and haven't given it a second thought.
I am having a lot of regrets with my purchase and will probably sell it in the next week or so. Think I have a bit of Nintendo franchise fatigue, playing Mario feels like playing the same game I have been playing since Super Mario World, just not as good. I really don't see all the fuss with Nintendo Land, only Zombi U has interested me and that is starting to lose its appeal.
Saw a very barren release schedule the other day and it made me realise I am only really bothered about Pikmin an Rayman (which I am sure will get a sequel to Origins on PS3/4 at some point) and I am not loving it enough to justify keeping the machine.
The e-shop is really well laid out, shame there really isn't a lot on there, sure it will get better but again only seen 3 titles planned for release in the next 6 months. The online aspect is still poor compared to the PS3/360 and the speed of loading and getting back to the home page is appaulling. Think Nintendo are light years behind in there online set up.
The game pad is much more comfortable to hold then I expected and the battery life hasn't been a problem for me, but I have never played more than 2 hours in a day. I like being able to play games on it without the need for the screen, but with such little 3rd party support most of the stuff I want will only be available on my PS3 so it doesn't help me out. Not sure how much of a game changer the second screen will be, used brilliantly with Zombi U but not I can only see it working in tense situations and just having a seperate screen for maps/inventory seems a waste of resources.
I think the thing that really brought it home for me was 12 hours of playtime trough 3/4 of December. Really can't justify the expense for such limited use and it will only be gathering dust for the next couple of months until something else gets released.