That's definitely not a problem.
Every gamer I know is deciding on buying a Wii U right now because of Smash. Plus if Mario Kart 8 can sell in the millions, Smash can definitely do just as good -- maybe better. Sales just aren't an issue when it comes to Nintendo titles.
As for the ''no games'' part, I'd be happy to recommend you tons of awesome stuff.
Oh i have no doubt it will sell like crazy. Im just saying compared to the 3ds which has a TON more units sold, i'd be surprised if its even balanced between them let alone passing them and making the 3ds version obsolete. My fear of the wiiu version is that certain times of the day might be totally dead online, since i had that issue with MH3U. More units have sold since then though so i could be wrong (hopefully).
And i didnt say theres 0 games, i said in comparison. I own and enjoy:
Mario Kart 8
MH3U
Pikmin3
Hyrule Warriors
New Super Luigi U (then again this is just a typical mario game, but its HARD which is why i like it)
Wind Waker HD (port, but vastly better than GC version)
The other games available either have no appeal to me (unusual setting, sounds dumb) or downright suck (wonderful 101.......i hate that game so much)
If i listed off the games i wanted for a PS3/4 i would probably be typing for about 30minutes. I dont own a playstation though because i have a thing against multiple consoles (theyre WAY expensive when you start doing that) and i have always been a nintendo fan anyway.
I WANT the Wiiu to get popular. I just dont think it will because of the bad vibe and difficulty of programming for 3rd party games potential.