I have 2 PnPs (yeah.....) and I was thinking of turning one into a ball pit with 200-300 balls. The balls are surprisingly expensive! There is an ad on our local moms group for a ball pit + 200 balls for $30, but I think I can get her down to $25 or $20 without the pit hopefully. Is it worth it? Did your 1-3 year olds like ball pits? LO is 16m.