That's a tricky question. I'd almost lean toward the cost of doing business as far as the crankbaits. Someone throws my equipment in the lake in a fit of rage, they will reimburse me then get taken straight back to the ramp. Their day is over.
I'd look into replacing the hooks split rings with lighter rings so perhaps you only lose a hook instead of the entire bait. Braid line combined with the lighter rings may save a fortune in baits.
Not sure if there are light wire treble hooks that will straighten out before the line breaks???