I think there are other factors. > The stickiest toys are usually simple and open-ended, she said, like blocks or basic animal figures. I think these were mor

I think there are other factors. > The stickiest toys are usually simple and open-ended, she said, like blocks or basic animal figures. I think these were more prevalent in the past. After I got older, I noticed the next generations of kids had more "single-function" toys. Even lego did this, where their kits built more specific things, with specialized and unique parts.