Potatoes

Never liked this example because the time spans are vague and personally I've experienced the opposite.

It's kind of like, walking into a store, you can get a $3 package of toilet paper or a $5 package. The $5 contains more than twice the $3, making it the better buy. The problem is that you only have $4.
Question: given the inherent unfairness of this, how would you change the equation to make it "fair"?

this is why iphones are designed to fail.