After reading about consumer buying, it really is amazing how much research goes into marketing. It's not just what people buy, but why people buy.

It's also interesting that low-class consumers tend to impulse buy the most. It reminds me of an article I read based on one person's experience living poorly. Poor families impulse buy when they have a little extra money because otherwise it will all be gone soon on things like bills. 

About half of my childhood and all of my teen years were spent living with my single mom and 2 brothers in upper-low class circumstances. It's true; when the tax return came around, or any amount of extra cash, we'd spend it on some form of entertainment, otherwise it would all be gone. 

This is obviously a bad habit that living poorly tends to instill in people, and can cause things like negligence towards healthcare spending and saving money.