In addition to simple pragmatism, there are aesthetic reasons to replace Busch. When the stadium was built, the technology of steel and concrete had just arrived at the point where we could build baseball parks that didn't have those damn-fool girders in front of every 10th seat, like Sportsman's Park had. The cost of that was that the seats had to be "raked" very shallowly. That is, the seats in Busch, especially the higher ones, are very far from the field, because the technology of the day couldn't put them any closer without putting girders out there. Well, the technology has changed, and the newest ballparks are able to do away with the girders without making the general-admission spectators feel like they're watching very small TVs. This makes a big difference in how involved in the game those spectators feel, and that is a big part of the professional-sports experience. The ballparks of Busch's generation are the ones other cities are now replacing, for just that reason. We were one of the first to get rid of the girders; we don't want to be the last to let our fans see the action close up.
-- Daniel Durchholz and Brock J. Hanke