not necessarily dramatic dakota. the odds of something happening are extremely small and NO guarantee that this system is going to do anything to buy extra time nor save a boat. heck. I bet factoring in the odds of having a fire AND the odds that this system either buys extra time or saves part of the boat are less than 1%.
the system MIGHT buy you extra time, or nor. it MIGHT save part of the boat, or not. it MIGHT go off, or not.

too many variables to say that the monies are well spent but great thing about 'merica is you can spend monies on whatever you like. the $500 is not a ton of cash when talking about 100k boats but I just try to get people to think about the ROI before handing cash over and not recouping it.
to remember some lines from Sam Walton, as soon as you stop watching the pennies, money doesn't matter anymore. 20yr note it's only $3 but as soon as you stop minding the $3, pretty soon you're broke.