oh8eleven, sounds like your experience mirrors mine. I jog about 15-20 miles/week on trails in the desert. I’ve gone 3 months without running right now from an injury, but I got that from a horse so it doesn’t count! Apart from needing protection from thorns and rocks, I find cheap shoes hurt my legs.
The Nike Pegasus worked OK for me, and the Air Pegasus has been my mainstay for as long as they’ve existed. I’ve tried Walmart knock-offs...even cheaper versions of Nike. I’ve also tried more expensive shoes. The wrong shoe, at any price level, gives me knee pain within a few weeks. With Air Pegasus, I can jog for years without injury.
About 3 years ago, I decided it was silly to experiment with different brands/types just because they worked for someone else. But going without shoes? In southern Arizona? I’d need callouses 2 inches thick...