Indeed. It's not cheap, but it's mostly a one-time cost* and the big binder we have that covers all sorts of scenarios and contingencies offers us considerable peace of mind. If you have enough assets that anyone would bother fighting over them**, it's worth doing.

* Not including divorces or if you change how you want to do things.

** If you haven't been involved in settling an estate, that bar is probably far lower than you'd expect.