I was surprised that they killed off Endless[1], the dedicated shoe shopping site, rather than turning it into a subsite or skin on Amazon; I was expecting Amaz

I was surprised that they killed off Endless[1], the dedicated shoe shopping site, rather than turning it into a subsite or skin on Amazon; I was expecting Amazon to create more category-specific UI, but very little of that has happened. Maybe the categories are too hard to define? Maybe it gets too hard to move the underlying platform forward when you've got 20 forks of the UI to maintain? [1] Though it makes sense after the acquisition of Zappos that they didn't want to have 3 shoe stores. Or does it? You'd think running a separately branded web front-end would be cheap.