Why do some commit suicide by means of cutting their wrists?

It is a reasonably well known fact that a method of attempting suicide is cutting the wrists, this act (if performed “correctly”) causes intense and rapid haemorrhaging which can render the person taking such action dead in a relatively short period of time.
I have pondered recently why it is that someone would choose to kill themselves in such a seemingly torturous fashion. Surely with the many other methods at ones disposal cutting the wrists would seem one of the less desirable? Is it largely due to the low fatality rate (some sources claim it to be 1% of ‘cutting incidents’ that lead to fatalities) attached to wrist cutting? If so then isn’t this counter-productive to ones key objective in performing the act?
Any insights on the matter (perhaps even personal stories if one is entirely comfortable sharing such with others) would be appreciated.