I've noticed a ton of pros are riding with Tacx Tao bottle cages, but my question is why? They weigh 39g each and by cage standards, I'd say this is kinda high considering others out there such as the campy record cage which is around 18g. I certainly don't have a 15lbs bike, but I'm in need of some new cages and looking to save weight anyway I can so is it worth the extra money to get some of the nice carbon ones? I found a listing on ebay for 2 carbon cages weighing 16g each for $60 and that seems like a good deal. The tacx taos are pretty cheap though, at around $15 a cage. Anyone have any suggestions?