You also forget it is expensive and in many cases not taking charge by the respective healthcare autority of the country, so it leads to less consumption.
It's $66CAD including taxes where I am after insurance. I save 3-4x that on less groceries.
And its for life. Unless you are doing it for Instagram only... "The Insta Diet" as it is called also.. When the diet finishes, you will gain the fat instantly also (just as with any diet obviously).
It is for sure expensive (~300€ / month) but from my understanding nothing like the prices you see in the US (+2'000 $)