I'll tell you why Nintendo fans are so excited over 1 week's worth of sales.

[Captain_Tom]

Experimental42 said:

The Wii U was written off as a flop and essentially dead since November of last year, so it's kind of exciting for Nintendo fans to suddenly see the Wii U acting like the quiet kid that snaps on the play ground. For one week at least, it's holding the Xbone down and dropping turds in its mouth, while mean muggin' the PS4 as it sits on the jungle gym.

The timing of this erruption literally could not be better.

This is the most exciting thing to happen in the Wii U's lifespan, and it occurs right before E3, one of the 2 most important times in the entire video games industry, when Nintendo has fully embraced the concept of DLC, which is a good way to extend the life of Mario Kart's push, and has a decent looking lineup in the middle of an Xbone/PS4 drought.

E3 excitement paired with the Wii U's first signs of life is just helping the hype train build steam. If the Wii U stays close to Sony again this week and Nintendo doesn't drop the ball at E3, then get ready for a far more zealous Nintendo crowd, not only here but over the entire internet.

Yeah but I wouldn't celebrate yet.  I always give a sales spike 3 weeks to see where sales fall back down to before I get out the champaign...