I think I was drawn to the harpsichord because of the similarity of touch between the harpsichord and the tracker organ. When you press a key on the harpsichord, the pluck of the string gives a slight resistance similar to the feel of depressing a key on a tracker organ. Also, harpsichordists and organists use much less wrist and body motion than pianists, and we do not need the upper body muscles required by pianists.