Well the facts are buying bundles shouldn't matter. Technically the thing against it is that you are forced to buy it but its a bundle. You still pay for both. Who's to say buying anything with a hardware isn't the same. If you bought another game with a hardware, you technically just bundled your purchase. Same thing its just with Wii Sports and others, the decision was made for you.
But that doesn't exclude that you bought the game on the market just like every other thing. Actually as a whole you paid more for it. Meaning who's to say the console didn't cost a dollar and Wii Sports cost $249. Either way its nothing but assumptions. Only thing that is fact is that it was bought fairly on the market and should be included with sales of every other product.
Now, I make exceptions when comparing optional buys. The key difference between Wii Sports and say Wii Fit is that you need the console to play a game. Of course you need a game to play the console. Either way you need both so the bundle makes that decision for you. It's a forced but still optional buy considering you still had an option to buy the console/game or not. But when it comes to say Wii Fit its complete option and not bundled. Thus we like to compare the games that are for the most part optional buys. Sure they may have a special bundle with a console every now and then but not most of their life cycle. Also its great for comparing sales of say the Lego Indiana Jones series. Technically the 360 version will sell more but the Wii version was leading until up into the bundle. Thus we should give a little more merit to that of the Wii version for leading without the need of a bundle.
And I sometimes even go further considering some games encompass more than one version such as Pokemon Diamond/Pearl or Nintendogs. Although they are the same game with slight variations, I tend to separate them when comparing best selling games but there is no reason for doing that because they are sold on the market just like everything else and should be combined.
The point I'm trying to make is bundled games are optional buys that are forced. They are optional in you still had to decide to buy the console to get the game and you need the game to play the console. But they are forced in they do come with it and you need the console to play the game. But the game is sold on the market by its own merits just like everything else. but when comparing with games that are sold completely as an option on the market, its best just to exclude the bundled ones for fair comparisons, such as with the case of Lego Indiana Jones.
