In seriousness, I think Microsoft is too early to try and go all digital all the time. The Sony leaks showed that the majority of sales are physical for them - something like 60/40 por 65/35, IIRC, somewhere in there - and I would imagine that Nintendo is similar. I would guess that Nintendo's voucher sales to encourage people to go digital by basically doing a 3-for-2 sale on digital games are partly because most people on Nintendo consoles buy physical.
Then again, their goal long term is to be a digital services company in the video game market, so it makes sense in that regard.