Lighter is better....there is a point where it is not as durable and also a point where it is not cost effective.....try to find that balance....

In the Tri market weight was not a focus for a long time....actually it was the TT market and Tri people were just using there technology....now they are focusing on it more...

To me 100 grams is important....that is close to 1/4 of a pound.....if I can get ride of that and it not cost me a mint then I am up for it. Durablity is a must....I am not going to buy a superlight seatpost to break it on a ride...there is a balance...use your check book and find it.

In my opinion it is about 85% important to have a lite bike....

Someone has a power to weight calulation yes? If I weight 200 pounds and ride a 30 mile ride....2500 feet of climbing....in the end I average 200 watts....if I loose 10 pounds and ride that same 200 watts average how much faster will I finish the ride in?