Physical pictures are one of the few categories I won't likely ever dispose. I'm going to scan what I have this summer, but those will be more of a backup than anything else. Music, movies, etc. are replaceable. Old family pictures and the like aren't. I wouldn't trust my own copies of them to be digital.
Definately, I would never get rid of the originals for the photos (hell, I still have all the CDs I bought before I went to college...they are just at my parents so don't count toward my minimalism score)
Only thing is...I have about one roll's worth of film photos to worry about. I'm 23 and my dad is a photographer so while I have certainly taken my fair share of photos on film, all of the photos that really mean something to me were taken after we had acquired several digital cameras.