Oh yeah. Check the Mission Bay in San Francisco. Everything is walkable and very relevant to my life. I never drive to a grocery store, day care, coffee (3 - 4 places with excellent espresso), kid activities (there a bunch of places - music, soccer field, etc). In fact the first 4-5 years, until we had 2 kids we even didn't own a car - there was no need in SF ... and we enjoyed it a lot.
Now, with my second kid going to school (public) I have to drive (it's literally 1 mile). It has changed the whole schedule. That single drive! Annoys me as hell. It's hard to imagine how convenient it is when you don't have to drive anywhere, even school, day care, etc. This makes a huge difference.