NO
Here is the logic why not to get it
A stacker has a bun, patty and i think two pieces of bacon? (plus cheese sauce etc)
A double has a bun, 2 pattys, and still two pieces of bacon
A triple has a bun, 3 pattys and yet still two pieces of bacon
a stacker is $1, double is $2, triple $3 and so on
so buy 3 stackers, you then have triple the bacon and buns for the same price
if you don't want the extra two buns, fine, but you have 4 more pieces of bacon!