Variances or changes are necessary for people to recognize stimuli. This is why we often find ourselves unhappy after we’ve owned something for a while. Although we initially had a desire for it, our brain recognizes a lack of this variance once we get used to having it. The novelty of the new stimulus wears off, and the item becomes a part of our lives that we now take for granted. Without that variance, we eventually get sick and tired of it.
