i know it doesn't make any sense, but many folks who are heavy BC users (i.e., the ones who need it most) are pretty "close" with their money. since the avalung came out, i've been asking people why they don't have one...and it's money 99% of the time. folks who aren't buying season passes due to money are (from my informal polls over the years) just not willing to shell out the additional $$, even though it could mean their life.
it's kind of like buying insurance...you don't appreciate it until you actually have to use it.
and many of these same folks are uninsured.
i DO foresee the heli crowd (+ guides, patrolmen, etc.) using the packs (just like they're the main groups using avalungs) and the clients as being potential users.
me? i think it's a great idea. i'd still be worried about hazards in the avy zone (e.g., trees, cliffs).
TH: an extra 3.5 pounds on the back is even less than the difference b/w dynafits + fritschis on de feet. :)