Originally Posted by Markul

I generally avoid carbon materials for my MTB, for two reasons:

1. Durability
2. Price

The weight reduction is probably noticeable for a carbon frame, but the frame may snap if you make that unlucky crash. And once a carbon frame is broken you can't fix it. Also I'd feel stupid paying that much to loose weight on the bike, when I can loose weight on myself first.

If you're not a pro rider, you don't need to pay that much extra to get the top line stuff just to get a bike that's 3 kilos lighter.