Who the heck rides with one of those inherently-duplicative cogsets? And if they do, why have two rings up front? With the ubiquitous 39/53 rings and the 11-26 9-speed, 6 are dupes, giving you an effective 12-speed. With the 11-32, it's even worse, with the 52/11 and 52/12 being total hero gears and basically unuseable except on long descents and 7 dupes giving you, essentially, 9 gears to use. Plus a heavier rider such as myself has to deal with chain stretch and accelerated wear.

Half-step isn't dead and 7-speed is, contrary to industry efforts, alive and kicking as well.