As a barefoot runner, I would say the more expensive the shoe, the worse it is for you. But that's just me.
Hope this ain't a real dumb question but I have a feeling it is. Do shoes make that much of a difference? I'm old (north of 60) and never pay more than $50 for a pair of "running shoes". Last time I had my feet evaluated was when I looked into that old x-ray machine in the shoe store so I could see where my toes were.