In my neighborhood (Brownsville, Brooklyn), a Spaldeen was 15 cents–too steep for a lot of kids. An alternative was an ugly, underinflated, evil-smelling, grayish-pink ball with crudely vulcanized hemispheres that we used to call the “eggball.” It got that name because, no matter where you hit it with a stickball bat, it’d go almost straight up, and oscillate wildly in an egg shape. Impossible to catch without it squirting out of your hands. Stickball games were won on lopsided margins on errors alone using eggballs.
If we were really lucky, the local toy store or candy store would get a load of “seconds”–Spaldeens that were defective in some way, so they had “second” stamped on them. They were 8 cents or a dime, and were a real bargain.