Or perhaps they have been duped by the advertising and really believe that the item will give them the thrill that the ads promise. They were a little disappointed. Teaching them to not believe everything they see on tv and in the ads is so important in a world filled with voilent movies, television shows, and video games. Encourage them to think for themselves- it will give them a great foundation for larger challenges down the road. Have them go through their toys.
Chances are there are some toys from the last great fad in their playroom.
Ask your kids if they play with these toys anymore, and why not if the answer is no. They probably forgot they had these toys. Use this opportunity to talk to your kids about fads and advertising. Don't underestimate them-school age kids are pretty smart. I remember the Cabbage Patch Dolls when I was a kid, and the Star Wars toys.