> Food is fuel; it doesn't have to be a source of entertainment.
It doesn't have to be, but for many it is. I greatly enjoy making and tasting food. The true value of something is a combination of its physical and emotional cost to the purchaser. I think that gets lost in many budgeting articles.
Of course, if you're truly on a tight budget like this article proposes, luxury and entertainment aren't even parts of your budget. But if not, you're going to be miserable unless you can do things you enjoy, and often times those things take a bit of financial support (obviously not everything, again).