Is the $2.1 Million Price Tag for Novartis' Zolgensma Ridiculous?

Novartis'(NYSE: NVS) Zolgensma, after it delivered remarkable results in infants with spinal muscular atrophy (SMA), a deadly genetic disorder. The potential to prevent death in infants by restoring the expression of a critical missing protein is a tremendous advance, but most of the media attention so far has focused on Zolgensma's $2.1 million price tag. Is this price as crazy as it sounds?