I will confess I do not miss my downtube shifters. If I was racing I would want a precise and convenient shifting system. When everyone had downtube shifters skills made the difference. Now that expensive technology has removed that particular aspect of competition, you need to buy into it. Then, thanks to industrial ADD and no small measure of avarice, you have to keep buying in even if your current gear still technically functions. You don't take an old single action Colt revolver out to face a bunch of adversaries toting automatic weapons. In the movie you might win, but it would be a special occasion nonetheless.
Actually this whole post was an excuse to use the phrase, "Royale with cheese." Cultural mildew being what it is, I always supply the words "with cheese" when I see or hear royale anyway. It just cracks me up for some reason.