Not sure if it's all marketing or not, Specialized first started putting the Zertz on the upper end carbon bikes, but recently has started trickling down to the other lines. I have them on my Ruby, but have really not ridden other bikes without, so not really anything to compare to.

I really like the Vita. Honestly, I really like most of the styling of Specialized more then any other bike manufacture. I ended getting a Trek FX because of the deal the shop was giving me!

Shannon