I have been buying expensive running shoes with expensive inserts to help out my very low arches. I want to break out of that and go with something else. I really shouldn't run barefoot where I live and Vibrams are currently too expensive for me right now. Does anyone have any experience in running in just some cheap sneakers? With low arches would that be a good idea? Or should I just stick to my expensive running shoes until I can barefoot it or buy a pair of vibrams.