Zog
Banned
Amazon still has it new. As does my local Walmart, Target, Shopko, and Kmart and I know that my town isn't the only one to still have them new. Hell, on Amazon you can still buy the digital code for Pikmin 3 and it still works.
As to why they delisted it? Any number of reasons such as to prevent confusion when searching online, their website store, etc. You can still buy the game, mate - so I will once again reiterate what I said prior: you are just trying to find a reason to be pissy with Nintendo. There isn't some grand conspiracy here.
They will get around to removing the digital codes from sites like Amazon, do you doubt that?
Also, do you think the physical copies are still in print or are these new copies you seem to have all over your town back stock?