DD only for me.
You can keep those dusty azz disc. Nothing else but something to lose, scratch, break, steal, misplace, switch, put in the tray, take out the tray, pile up, store and gather dust.
With the exception of gaming discs for my console.. I havent bought any other optical disc media since 2005. I still have 500+ DVD's in like new condition, sitting in the cases with all documentation that nobody wants.
Whoever thought it would take THIS long for day one digital downloads to come to gaming.