Years ago I was considering buying a Rivendell Rambouillet. I called or emailed Rivendell asking how much the frame and fork weighed. They wouldn't tell me. The gist of their response was: "Weight doesn't matter. If you think it's important, perhaps you shouldn't buy a Rivendell." I ended up buying a Merckx Corsa 01 instead, largely because it was available and Rambouillets had something like a 6-month waiting list at the time.