Originally Posted by humble_biker
Another knock against Sora is that low end componentry is manufactured for people that don't plan to ride much. So if you ride alot, even if you care for it, it will wear out faster. Treat yourself right.
No. I've got 2600 miles on mine. Not a lot, but I think if it were not designed to be durable, it would be showing some signs of fatigue. And I'm a big guy riding hills, I shift a lot. I've seen people complain about not getting much more life than that out of Dura-Ace. The difference is in cost and weight. Sora of course shifts differently, but since I ride on the hoods most of the time, where the "mouse ears" are easily reached, this isn't a problem.
I've never...never heard anyone complain about Sora wearing out any faster than any other component group.
Edit: Maybe Sheldon will stop by on this thread, I believe I saw him once say that he wished that Sora was available in 9-speed. I assumed that he was implying that it was good stuff.