Lets see. Pennies per gig (disc based, Direct download), or dollars per gig? Do the math.
We have a long long way to go before flash catches up with disc based mediums, by that time people are going to accept downloading their games. Downloading games is way more convenient. Game gets released, everyone who wants a copy can get a copy, nearly instantly (donwload time). No waiting in line overnight, no worrying if they are sold out.
If you want a 'physical' copy, make a backup to a USB flash card.











