IMO, the discussion here is more about the pro and cons of the digital world, applied to the photography world.
Digital photography is our only option?. No, film still exists, for now.
What do you prefer?:
- spend 1 hour processing your photos with photoshop or developing in a darkroom?
- store you photos using hard-drives/cards or as negative films?
And so on...
In my experience, electronic storage media is not reliable, sooner or later they will stop working and I will loose all or some information, even if I had backups because are also on electronic storage media. It's a vicious circle.
Someone here said that you can leave your photos in the memory card, if you read the chipset specifications you will see that the memory chips are capable to retain information for a limited period of time and that is not caused by failure but as a tech limitation.
And about the hardware... a Contax II, that already have 50 years, will still working in another 50 years, a today's DSLR not. The same with the lenses.
This debate is endless, there are pro and cons on both sides, but this is not a war, we can be on both at the same time.
Some time ago there was a similar debate, but it was about SLR cameras with mechanic shutters versus electronic shutters. The technology advances always create this kind of confrontations.