It's the same thing I've heard from aircraft owners, "Why should I invest in something I will never need ? " Either a PLB or other rescue equipment is last on most owners list, they would rather put there money in the latest fishing equipment, or some new nav aid. But don't many of us fall for this where we buy the newest knife/ tent/ pack ect. when perhaps we should be look at other preprations for emergencys ? But because it's hard to get excited about a water barrel we let it pass. Just my thought YMMV.