Tofu and I had a hilarious conversation about these things the
other day. He said it was an expensive way to die, and after some
thought, we actually found out that it could be profitable instead!
Although not to the crash victim anymore.
The thing is, if you want to commit suicide and jump off a roof,
the insurance companies won't pay whoever is supposed to get your
money because of suicide. BUT, if you crash in this thing, and die,
then you have a pretty good legal reason for your death. Just don't
purposely run it into other cars or people though. 
So given those facts, the best (and most profitable) way to die is
to get one of these! 