Love the old pitch n bat games... ive been to  a meet before that had one  and it got a flogging from everyone... very popular to play IF you have 2 people.
The one in that listing is way over priced.. its a very basic model.

The MOST sought after ones have the animated running man....The best of these is a manikin that moves along a track like this gem from 1951

http://www.pinrepair.com/baseball/sworld.htm

Once this got too expensive to make they turned into a light globe that would move behind the backglass to show the progression of the man.

They are a real blast to play and the ones like shown really are highly sought after....
 I have a collector in US who is sitting on about 10 of these... so far his price has been too high for me.. but one day... one day