My opinion hasn't changed much since https://www.whiteblaze.net/forum/sho...47#post1318047
I tend to figure that a situation (unable to travel) where I would have to light the PLB is a situation where I'm very likely to be dead before they get there.
But if I can make one last act to keep the searchers safer (search is by far the most dangerous and expensive part of search and rescue), it's probably worth the quarter pound for the beacon. And in that case, I'd rather have five watts of UHF, plus a scream on the VHF distress frequency (121.5), plus a visual beacon, rather than a few hundred milliwatts in S band.
I always know where I am. I'm right here.