I've lived in cities for all my adult life, and I feel the opposite -- living in the City isn't all its cracked up to be. Yes, there are Museums, but nothing a day trip can't show you. There's noise, and dirt, and people being more stand-offish, and very few trees and even fewer spots of grass. Air pollution, ridiculously priced homes, etc.
I agree that being able to spend a bit of time in the city each week is nice for the kids, since they have activities and friends here. For me personally, all I know is that each week I cannot wait to get to NH, and I hate coming back to Somerville.