I love how annoying some people are on here *cough* but you all have to admit that this has gotten rather far off topic. There is room enough in this world for all our varied opinions. If you love the Wii U, great, enjoy it. If you despise the Wii U, great, don't get one. Your opinion is your own, but seriously, back to the question if he should get a Wii U or not.
A lot of good options were brought up. Wait till Mario Kart and Smash and whatnot are released, wait till a price drop, stuff like that. Personally, I say if there is something you want on the system that is out now, go get it now. I would say the same if this was about getting a PS4 or Xbox One. A lot of issues that the Wii U has would be fixed if everyone went out and bought one.
I got my Wii U at launch. I still use it, though less so for games these days. Netflix, YouTube, Wii Fit, old school games, whatever! I still use my Wii U to this day. I wish there was a faster stream of new games of course, but hey, things are still coming. Do I think you should wait for a price drop? Maybe. I doubt one is going to happen till around the holiday season (as it will with other consoles), but if you want to wait another 3/4ths of the year then go ahead. Wait for a bundle? Again, if you want to. No doubt will Mario Kart 8 become a bundle game in the near future.
If you get a Wii U will it prevent you from being able to get a PS4 or Xbox One or be able to enjoy PC games? Hell no! Should you ignore trolls? Hell yes!