Trying to keep up.
Good question. "What do you/we really need?" I have an older Garmin with a 4" screen, that we replaced with a new Garmin with a 7-8" touch screen. So now I have 2 on board working ( a good thing). I just started using on iPad with Bad Elf which works great. My EPIRB is the older 406 model. Battery "expired" 2 yrs ago. No one will replace battery now be cuz it's "old". I guess I'm saying I always know we're I'm at.
I coastal cruise S. Cal. With all this technology, I'm just going to make sure compass is accurate, radio/DSC is working, radar is working, flares are current, dinghy is inflated, and the captain is looking out for all those "other guys"! Honestly my biggest concern is when I do a night sail/motorsail up to Catalina from San Diego being run over by a freighter. Those guys are really scary at night.
Thanks. Bob