I didn't even know this was a debate.
Glad we don't get quite that anal around here. I mean, we're picky no doubt, but...wow.
There are lots of old school collectors at various forums who look down on us digital collectors / players and don't think our games "count" because they're not physical.
Yes, it's dumb, but whatever. You can't change the way people think. :p
I get digital stuff when it's digital only but I want to play it. Generally speaking I don't "collect" digital stuff since all the DRM makes it "leased" software at best.
If I want it for the long haul and physical copy is an option I generally go that route.
But no question digital games like this and Scott Pilgrim vs the World are legit games. They just have a shorter life expectancy than a physical copy.