It's a shame Nintendo's marketing of the system has been so shambolic. It's actually a great accompaniment to the other consoles/PC gaming and offers original experiences. I play it all the time with my GF and though the new tablet controller seems gimmicky there are actually some really cool uses for it, to give you experiences you can't have on other consoles.
Super Mario 3d World is what convinced me to get it, knowing Smash Bros/MK8 were on the horizon. Don't regret my purchase on iota, especially now that Mario Kart's out soon so I can bring it into the living room and play the Mario Kart drinking game when we have house parties!
By the way, if you're a member of club Nintendo and you register your copy of Mario Kart 8 you get a free game. And I mean a good one, not a six year old gash game you can get for £3 like with that Xbox Games for Gold thing. I'll be getting Pikmin 3.
http://www.nintendo.co.uk/Campaigns...Terms-Conditions/Terms-Conditions-879237.html
EDIT: Oh and the main selling point: HD! It's ridiculous but this will be the first HD Mario Kart, it's got the first HD Mario platformers etc. Playing the Wii/Gamecube on modern TVs gives you eye-aids, so it's really a wonderful experience seeing these colourful Nintendo game worlds in glorious 1080p.