Personally horizontal progression is dumb to me. Why would I want to get a piece of gear that will last me for years? What's the of playing after that. I like getting new gear, and this game does a good job of making me feel more powerful with each piece of gear I get. That's great. So what that it only lasts 3-6 months. It's what keeps me playing. The only horizontal progression the could add that would work would be adding bonuses to gear. I.E. 5% chance tornado kick will give greased lighting 3, or 5% chance If resetting Jump's cooldown, etc. But this gear won't be better than the next set of gear.