LunaMom, every community needs
to have a children's museum! That's the solution to the indoor play problem. We live in an area where we can play outside most of the year so it's not as much of a problem for us (no snow, freezing weather). Children's museums allow your kids to get totally messy, creative, and everything is at their level, it's great. The one closest to us is rebuilding so it's closed for 2 years!!
There is one about 40 minutes away that we will go to while we wait. I do not like indoor play structures (kids have never eaten at McD's), at Sea World they have a play area (monstrosity) that I try to avoid at all costs, of course the kids love it so we usually spend some time there. It's dangerous in my opinion b/c you enter one area with your children, they go in and could come out in a different area, you'd have no idea. It's not enclosed so they could end up at the other end of the park, or worse
Poorly designed in my opinion. I know kids love these play structures (who wouldn't) but I try to take them hiking, to the beach, so they know that they can have fun without some man-made accident waiting to happen.