Considering that they're the type of games that have long legs, I think Nintendo Land and New Super Mario Bros U have already done their system-selling job. The problem is the huge lull of software now, and probably bad marketing.
It's certainly a possibility, but I think it's too early to declare the Wii U to be a repeat of the GameCube. Melee was Gamecube's only million-seller. The Wii had fourteen. Even without the Wii series, that's still eight. I find it hard to believe that the effects of that will magically disappear.
Which isn't to say that the Wii U will definitely succeed or that there's any known or unknown game that can sell it, but I think we need to see whether the presence of releases will have an effect to make a reasonable judgement.
Okay.
The Top 10 and Top 10 Tie Ratio charts are pointless.
Since the tie ratio is basically a minimum I actually agree with you. If no one is interested I will stop posting that.
With the Top 10 software I don't see the problem. Unless the top 20 numbers are available for all of late 2006 and 2007 somewhere I don't know of, the top 10 is all that can be clearly represented for all of those systems week by week.
I realize that only displaying a top 10 ignores titles with lesser sales, but it seems to mostly affect consoles that already have more software sales. If that additional bias is the problem, would you like to me to represent it better?
As you can see from the last chart I posted, the Vita and PS3 would not have benefit for most weeks even if I had the numbers for the top 20. In the PS3's case, there were some weeks in which it had nothing in the top 30. On the other hand, Nintendo Land sales aren't represented for some weeks, nor are most sales for Twilight Princess. 3DS is probably the most underepresented.