I think everyone who travels regularly with small children knows the value of an airport play area.

Unfortunately, since they don't bring in any revenue and take up space, they often seem an afterthought at US airports.

I agree with the above posters who applaud the natural partnership between kids-focused museums and airport play areas. In that respect, the play areas at ORD and PHL are commendable.

I always appreciate it when even small airports try SOMETHING to entertain the kids. At tiny Jackson Hole airport this summer, my kids were delighted to find lego tables scattered throughout the concourse. That probably cost the airport next to nothing, and results in many happy parents and children.