talking about film SLRs....
Would people still take up photography if until now, DSLRs have not been invented? I took up digital photography because I was influenced by the 'wonders' of DSLRs. And I think more and more people seem to be interested in DSLRs and all the latest stuff that technology can offer.
If there were no DSLRs, I probably won't take it up.
I think people who are dedicated in shooting film are holding on to the tradition of SLRs whereas the people who shoot digital are creating new purpose to photography - which is to have fun taking pictures.