Front suspension question - cost

I stopped at Napa yesterday to price a replacement lower ball joint for my 69 Dart. Car has 10" drum brakes. They want $102 for it. Does that sound right? Is there any other venues to obtain a ball joint?
I didn't order it because it sounded too high to me, but he can get it in 1 day if I decide to get it. I realize that it is a pretty big piece, but I just felt it was too expensive.
Any thoughts?

Thanks,
George