Originally Posted by uphillbiker
For example: some people have told me that high-end derailleurs don’t last as long as the standard ones b/c the material is softer.
As noted in your other thread, you need to stop listening to people who are telling you stuff like that, and who are telling you that carbon is prone to crack. They're not helping you at all. They don't know what the hell they are talking about and are only confusing you.
Originally Posted by uphillbiker
What is more important than being light is having strength, durability and longevity.
Using this as your criteria, just ride your bike and have fun.