Playing with Kids in the Big Apple

So there is always this buzz about the pros and cons about raising a kid in NYC. The biggest problem is where do they play as houses/apartment are very small and where do they play when it's cold, wet or too hot outside for the playgrounds. Which leads me to Appleseeds, an indoor play area for kids. The theory is amazing, places to play, classes and they really do their best to keep it clean. Really they do because i do work for a very germaphobic person (there isn't anything wrong with this within reason) and she wouldn't be okay with her E and N playing in germies.
So today E and i went to appleseeds as it's getting chilly and dark at 4:30 and the scene was insane. They claim there is 2500 square feet of playground space, but i doubt that...feels like 1000 at most and today 600 (really i don't even know square footage, but i try)! Anyhoo today in this 600 square footage there were probably 50 +kids and their caregivers...very tight. I constantly felt like i was about to walk on a child or bumping into a person. Lots of slobber, stinky diapers and screaming. Someone remind me why i've decided to devote my future to working with kids. yeah
check it out for some pictures of this place...oh and did i mention it's not free (of course not!)
http://www.appleseedsnyc.com/gallery.html