Recall simpler times. Older times. Times that didn't involve video games or tablets or the litany of things vying for everyone's eyeballs. Ah, the '90s. Well, we did have video games, they just sucked, at least up until Halo came out.
But before then, if you went to the grocery store or to the movies, and you were with little kids, you'd find yourself desperately searching for quarters as those places always had those little ride-on machines. It was the height of fun. Well, the sort of fun you'd get from rocking back and forth to some sort of jingle as a toddler or small child.
They weren't technological marvels, nor incredible entertainment. But they served a purpose for those with little kids, as they kept them occupied and sans a meltdown.