I don't agree about it not being an issue. I depends on the environment. I'm at a customer currently that is more interested in making sure that their templates are restorable after a server crash rather than their VMs.
They use the VMs to do some software testing and create and delete Vms all day. They need to have their templates to start from.
I also agree that in most cases the templates can be recreated rather quickly, but if the templates had a lot of customization done to them, it could take time.
Mayur