Full Answer
Hidden: developer time, infrastructure, maintenance, opportunity cost. WordPress-native eliminates all hidden costs.

GTM solutions: developer setup, monthly maintenance, platform API updates, emergency fixes, infrastructure scaling. Client-side: opportunity cost of 30-40% data loss. WordPress-native (Transmute): none—all-inclusive pricing eliminates surprises.
Hidden: developer time, infrastructure, maintenance, opportunity cost. WordPress-native eliminates all hidden costs.