I've noticed a fun split among people I know—those who grew up on a farm will move heaven and earth never to deal with chickens again, while people who grew up in cities or suburbs are really into the idea.
Didn't grow up with chickens, but have had them for 8 years now. Easiest pet I've ever owned, and they provide eggs. Haven't seen a weed in the yard in years. They'll decimate a garden bed, though.