For us, it was the "Monster Clubhouse" from Rainbow playsystems ... it was definitely an "investment" that will be used for over the next 10 years ... it's like having a playground/park structure in the backyard for the kids. Heck, I love sitting out there in the hammock swing with the baby while the big boys play.

Seriously, it was a 1 1/2 year experience in making a decision, and has become one of the best purchases ever.