It isn't a fast lane. It's the only efficient option. Legendaries for vendors don't rank up at all. Legendary drops might drop at +1. [i]Might[/i]. In D1, it was up to +3 from any activity. That's a big difference. I'm not gonna preach D1 to be a masterpiece or anything, as we both know it wasn't, but it's leveling system allowed for much more freedom. Heck. At one point in D2 you had to use the same subclass element type as a blueberry in a strike. D1 NEVER had leveling restrictions like that.