In 1957 Lionel produced a train set for girls. It had a pink locomotive and tender with a set of freight cars painted in pastel colours.
This market offering was met with derision from model railroaders and it turned out not to be attractive to girls or adult relatives of girls. The sets didn't sell until they were put on sale. People bought them and repainted the engine and cars.
Some sets were purchased and set aside. They are now a highly prized collectible. Such a set is selling on eBay right now for $815. A vintage set in the original box for boys from about the same time period with the same locomotive and cars in real railway colours is going for $60.
I don't know how to conclude this. I guess Lionel was ahead of its time. So much so that the society of that time didn't get it. Maybe society still doesn't get it.