Go mobile and 3rd party!
No no no.. That was a joke. But here's my idea for realz.
They need to add a trophy/achievement system and wrap it all together with Club Nintendo. When you buy a new game, it has a code in it like they do now. You enter that code into your Wii U or 3DS and it unlocks an achievement list for that game. Let's call them "Coins". As you play, you earn coins just as you would with Xbox and Playstation consoles, but here's the where it gets special. Those coins are what you use to buy club Nintendo prizes! Get rid of the whole customer survey thing. 3rd parties could also participate in this program, but they were need to meet a few criteria. For example, new games must release at the same time, no missing content, and can include some kind of exclusive Nintendo content. (Example: Mario and Luigi costumes in Rayman Legends.) Ports of older games can still participate if they include some kind of exclusive Nintendo content. (Example: Tekken Tag Tournament 2 or Ninja Gaiden 3: Razzor's Edge.)
So in summary:
Promotes new game sales over used.
Encourages gamers to spend more time with their games.
You're not just building a virtual penis, you can actually use those points for products.
Encourages customers to buy the Nintendo version of multi-platform games.
Yes?