Your saying the Wii-U's current predicament has nothing to do with the last few years of the Wii? For me, as I dont like 2D platformers and JRPG's, there was nothing worth playing on it. I know this is probably the wrong forum, but even the most hardcore Wii gamer must recognise that most other gamers abandoned it after the novelty wore off.
Yes, I am saying that. The current state of Wii U is unrelated to how Wii's last years were. For most people, Wii U is a highly unappealing product, which is the complete opposite of its predecessor. For example, I loved the Wii, but don't think I'll ever get a Wii U. At least not in the next few years. There are a couple of games I'd like to play, but it's not a product that tempts me.
And saying that Wii had nothing worth playing apart from 2D platformers and JRPGs is ignorant at best, and disingenuous at worst. What about arcade racing games (Sonic Riders Zero Gravity, Sonic & Sega All-Stars Racing, Excitebots)? What about visual novels and graphic adventures (Ace Attorney trilogy, Broken Sword, Sam & Max Seasons 1 & 2, Tales of Monkey Island)? What about brawlers (No More Heroes, MadWorld)? What about 3D platformers (Prince of Persia: Forgotten Sands, Jett Rocket)? What about Silent Hill: Shattered Memories, aka one of my top games of last generation? What about the Bit.Trip franchise, or escapeVektor? I know not all of these games are exclusive, but that's not what you're arguing, so it shouldn't matter. Plus it has GC retrocompatibility, not to mention Virtual Console, which allows you to play a lot of old games.
So no, I'm not going to blindly purchase a Wii U because I loved the previous console. And the opposite is true: I wouldn't have written off the Wii U forever if I had hated the Wii. These are independent products, even if they share part of the name.