Oddly enough the wealthy suburbs are the ones where there are the most leaf blowing going on. Desire for manicured landscapes + money to pay for lanscaping services that normally service commercial properties = small armies of leafblowing workers deployed all over the place.

My neighborhood is a mix of income levels; those who do their own lawn use smaller equipment, and they use one at a time. The wealthy ones have a crew of 6-8 people with a loud mower, multiple weed whackers/trimmers and multiple leaf blowers all at the same time. On the noise level, I measured it to be as loud as a jet airplane taking off—except it lasts a whole hour.