I bought this for my son's sixth birthday. Two hours later, watching a movie (Saturdays are movie night) he won't let it go. He's watching the movie, but has the game (it's turned off) and is moving the blocks around. I firmly believe it's worth $40. My soon-to-be eight year old is jealous, although he got a simon game last year. This is a great present and was quick for my (now) six year old to pick up. I personally love the customization of it. It's easy to change puzzle pieces out. Many puzzles, many difficulty levels. He's probably going to to go to bed with it.
