I agree, if you buy in bulk you save. And I agree typically, people associate return/ROI lingo with investment. However, I think it's useful to think this way t

I agree, if you buy in bulk you save. And I agree typically, people associate return/ROI lingo with investment. However, I think it's useful to think this way to compare ways to utilize your excess money. I find it helps people think about where they can do this in their lives outside of the normal Costco run.