Well...welcome to next-gen (including Wii U). I remember having to wait like an hour just to play Wii U -_- Before that when I got the 360 on 2011 I waited freaking 2 hours as it downloaded update back-to-back, first and update for system...which let to ANOTHER update for the system and then update for the game I wanted to play. I ended up watching a movie while it did it.
I wish they would pack the boxes in a way is easier to put everything as it was and suggest parents (or anyone giving it as a gift on christmas) to update the system so there child/love one/family member doesn't have to suffer waiting and killing the excitement of getting the brand new system.
Hopefully Wii U already has the latest update by then (doubt it, probably will ask to be update when you turn it on). So um...something ALL system have in common, update needed right out of the box!
By the way, reason MY update took so long is I had a crappy connection, probably be easier for people with faster connection. Still sucks.