Is the Ergotron LX really worth the money over a $30 Amazon arm?

Specialist subreddits like r/MonitorLizards and r/desksetup repeatedly land on 'yes, but with diminishing returns.' The LX's edge shows up in long-term stability (no sag over years), tilt range that accommodates ultrawides, and a 10-year warranty. If you're mounting a sub-25" panel that rarely moves, cheaper arms are genuinely fine. If you adjust daily, run a standing desk, or own a 32"+ display, reviewers consistently say the upgrade pays off.