And it's a lot cheaper too!
If you want cheep and sure fire to work, nitrogen asphyxiation. Rope has to be new so it will not break instead of the person's neck. Plus if you don't get it right, the person still is in a lot of pain and chokes to death.... or bleeds out when the head pops off the body. And that is a real mess (not to mention bio hazard) to deal with.
How bout an abattoir where we can put these clowns on an assembly line for termination?
Electric bleachers?