We have no general conceptual thrust for the band, other than trying to make music that keeps our interest. When things are novel, they are probably things we have discovered by accident or investigation rather than by design.
There is a lot of use of ProTools in professional studios, but this is mostly for the special effects it allows, not for sound quality. These special effects soon fall out of fashion, and I don't think this trend will define studios permanently.
The woman I am currently crazy about was a vegetarian for a year until I started dating her. As is the case with most vegetarians, she had never eaten properly prepared meat, only commercially packaged or otherwise abused flesh.
Staying aware of what you're doing and trying to make use of all its possibilities is more rewarding than grabbing sounds at random and incorporating them as an easy means of adding variety. That said, I don't think it is impossible for us to use other instruments - we simply haven't wanted to.