My Brooks Trance 7 are in need of replacement, but the latest, version 9, has an MSRP of $140, so I was looking for something cheaper. I originally got them from Sierra Trading Post, a great place to buy shoes at a discount, but they don't always have my size. So I am going to try the Adrenaline GTS 10. Brooks puts them in the same catagory but notes the Adrenaline is different (see article here) in that it has less cushion, cheaper materials, and a snugger feel. I got free shipping from Holabird Sports and should see them next week. I'll get $15 off my next order too.