In regards to attach rate, SO many downloadable titles would have been retail games on every handheld prior to 3DS.
Add to the fact Nintendo under their Virtual Console does not have to re-release older games as classics at retail, and the software attach rate on 3DS is likely much, much higher:
- Retail rereleases of SMB on the GB/C, and SMB2, SMB3 and SMW on GBA all sold over 5 million copies a piece.
- Yoshi's Island and ALTTP over 2.5 million each.
All available (or soon to be, in the case of Yoshi's Island) on the VC. I don't think all of a sudden a significant portion of those sales aren't happening because they're not being tracked.
Check out my news site thekonstant.com - it's chock full of good stuff, with an unhealthy bias toward gaming :)
