AsA doesn't even monitor ADSB, let alone use it in anger?
ADSB is used extensively by ASA. If you are VFR chugging along the controller will see your ID (callsign) displayed on their ASD if you are in coverage. If you listen out on frequency you will hear them passing traffic on you to others, don't you wonder how they knew who you were without identifying yourself? It's because the ID is displayed whether you're squawking a discreet code OR 1200. ADSB out is worth every cent, ADSB in is worth even more, whatever way you are getting it, on your ipad, on your GPS unit or your PFD.
But Sunny, don't stare at the damn thing, eyes outside once you've gotten a warning. There are limitations on its use. Don't be a flog, there are too many flogs in CTAF's/MBA's/MBZ's.