davidg said:
how can carbon bars be comfy? surely functional maybe
The carbon can be layed up to allow the bars to flex in the right direction, or even allow just the very end of the drops to flex more (for example). Since one of carbon's natural properties is to absorb some 'buzz' anyway, it makes for a little more comfort, when compared to an alloy bar which is much less forgiving. Of course, a carbon bar could also be designed to be very unforgiving.
In my experience, carbon seatposts are very slightly more comfortable than alloy, but the difference isn't huge, it's something you start to notice after quite a few miles.