I bet my sister takes more photos than you were at the time
LOL.. Well I use DSLRs for the vast majority of what I shoot. I've worn 2 out beyond repair since 2008. At the time I'd average 500 a day for each of the work days.
Today, I average 2000 pics per sporting event ( football, volleyball, basketball, soccer, swimming, baseball, Tennis, wrestling).
I have 14 x 1 or 2TB hard drives containing backups over the years.
Current computer has a 500GB SSD and secondary 500GB SSD with an internal 2TB backup drive and an externally mounted ( eSATA cradle ) 2TB drive. I'm constantly rotating the data around after a shoot. ( 23GB per event is normal )
Still takes a significant chunk of time to move 20GB from one drive to another.
Oh, and this is just hobby work. I don't even shoot pics for a living.