Lifts on the ground floor have to service the entire tower, where a lift that started half way up the tower would only have to serve half as much traffic as the

Lifts on the ground floor have to service the entire tower, where a lift that started half way up the tower would only have to serve half as much traffic as the ground floor lift, so you could have like a dozen lifts that go from ground->50%, and 6 lifts that go from 50% to top.