I know... it's great. I always am against like 600 people when I say I'm not fan... ha ha ha
I just haven't seen a need for it, personally. I have always felt it was one more thing to drain my battery bank. BUT... if it's part of your VHF that's always on anyway... that could change things, I guess.
Well, also a higher ranking merchant marine officer I know says that he hates it when small boats have an AIS broadcaster because it clutters up his view of what concerns him on a harbor approach. Plus, I really don't want to broadcast anything about my vessel out there into the ether for anyone to look at.
I suppose a receiver is OK, but I still, personally, have a hard time seeing where I'd really need one. A proper watch is always kept on my boats, so... ??