Hmm, I never really thought of an inflatable raft as a BOB item.
It's not a BOB item. It's a trunk of the car, get the hell out of New Jersey item.
Emergency planning has to be tailored to fit the individual's specific circumstances. If my circumstance was being boxed in by water, you better believe I would own a raft. But as it happens, I am not boxed in by water, so in my individual circumstance a raft is not needed.