Thoreau said the true cost of any given thing is how much of your life you'd be willing to give up for it.
In other words, if you don't spend it, you don't have to earn it, and that whole idea gives you free time.
has interactive features which enable you to see in dollar and cents what any given item will cost you, on sale, on credit, in cash, over the long haul.
I'm not against goodies. Eliminating impulse buys, or practicing some delayed gratification, means more time to play with the toys we already have.