My belief is that sometimes, when our popular culture is saturated with something, society has a tendency to collectively move in the opposite direction. We are currently being bombarded by technology and are learning to quickly adapt to change. (The new iPhone below is a good example.)
I think the old-fashioned toys represent a desire to return to a simpler time and expose children to wholesome, basic products without all the bells, whistles and memory cards. I even found a crocheted robot online that marries both ideas.