I have shifters and pedals that click on 2 of my 3 bikes… Sachs ergos shifting over a 7 speed freewheel and speedplay on the de Rosa, and 9speed sti (ultegra/xt/xtr) and xt sod on the volpe. They just make riding more enjoyable, and don’t feel out of place. My 72 Moto is all period correct, except alloy campy toe clips.