What are the pros and cons of an indoor playground?

Pros: 1.The risk for the injuries are comparatively less. 2.you don't have to worry about the weather . 3. Most indoor playgrounds have different arts and crafts curated for all sorts of kids including special ones so kids become easily adaptable to such environment. Cons: 1. expensive 2. Less exposure to sun(vitamin D) 3. More crowded than the outdoor spaces .