I see a lot of people say this when it comes to digital buying of games. Not to go too much off topic, but I suppose everyone caries their 3DS around in a case. And every case can at least cary a few extra games and it's not like we'll ever be so long away from home that we need more than like three or four games with us
As long as they still sell retail I'll always go for that. Though I must say that I'll get tempted more if they sell digital games cheaper than retail, which in my area at least is not the case.