actually go back to a very early age and continue on today.
The size of my digital library has recently exceeded the size of my traditional collection, shot mostly with various 35mm SLRs.
At the time of this writing my Mac iPhoto Library is over 6,500, and is much better organized than my physical collection ever was.
Idaho Teepee (photoshopped fire)
Petroglyph (photoshopped petroglyph)