Stop freaking out. Full digital ain't happening ( it hasn't happened for music which is 10 years ahead of games, it won't happen for games). What will happen is that most games will start to be available as digital purchase from day one as well as retail purchase and the medium term effect is that within 5 years the console gaming shelves at your local game store will look like the PC shelf is now...
Which is in practice you will find the big franchises and others games will be available sparingly and you might have to back-order some of them.
And as a side result the used game market will start shrinking ( ever checked the used PC games at your local GameStop ?)
PS3-Xbox360 gap : 1.5 millions and going up in PS3 favor !
PS3-Wii gap : 20 millions and going down !
