The simple answer, and the correct answer in this case, is that neither counting all of Sports/Play sales or none of Sports/Play sales gives us an accurate view of Wii's performance.
Include all Sports/Play sales, and Wii software looks very very good, though not incredible. Include none of it, and it looks pretty bad.
But a more accurate view would include SOME of each games sales. Because for one audience, they are the primary games they're buying the system for. Nintendo offered two pack-in titles to make it easy for this customer, who maybe isn't as familiar with videogames. For another audience, the primary games they want are Zelda and Paper Mario, but Wii Sports is free, after all.
The other problem is that you're picking out a single week. Overall software sales per system aren't listed, but for a week like the debut of Paper Mario, the attach ratio was at 6.2 if you don't count Sports at all, but count Play entirely. With a bunch of big games coming out soon, we'll see more bumps like that. Mario Party, Strikers, Pokemon, Brain Academy and Metroid are the big exclusives between now and the end of summer.
"[Our former customers] are unable to find software which they WANT to play."
"The way to solve this problem lies in how to communicate what kind of games [they CAN play]."
Satoru Iwata, Nintendo President. Only slightly paraphrased.
