Answer: yes I would :) I have backup (in fact I have several backups)
Hahahaaa! I must have heard that one from people hundreds of times and I can't help myself but laugh and ask:
You didn't create backup? Why? Was it too expensive to buy extra or external disk and create a copy of those files? Is it worth those 20-30 minutes you would have spend on copying those files?
Getting those files back is possible and slim. It's also expensive and there is always a chance of files being corrupted.
Just my opinion on that.