Also, we don't really know what the norm is and seeing as SS has everything in its favour for being a digital purchase except for being completely supply-constrained (thankfully, nice to see Sony having quite a lot of faith in their titles, also so sales happen) as well as being possibly Sony's biggest push on the platform, it is more likely that it does break into the higher digital sales in Japan, given the relative infancy of the dedicated handhelds' digital stores. Not to mention the differences between the Vita and the PSP and their stores. Not entirely sure why digital sales wouldn't be even higher for Nintendo in Japan if the demographics are similar there though, maybe the 3DS just gets so much shelf space that the lure is strong or their digital policy/store functions sucks - maybe nothing though as well of course.
For now it's safer to either go with the history we know of or just say "we don't know" until we're given any sort of information regarding digital sales.
I wonder, how has Vita shelf space fared these last two weeks?? Anybody get info on that