"The Jewish Barbie" joke

The last time I was I New York, my daughter requested that I bring back a Barbi doll. So I stopped in a toy store in the Jewish area and started looking around.
"How much is this Barbie doll set?"
"$19.95." the Jewish merchant answered.
"How much is the set here, Barbie at the beach?"
"Also $19.95."
I eyed another set, "how much is Barbie in the discotecque?"
"Also $19.95."
"And this one here, Barbie at home?"
"Also $19.95."
"Well, what about this one, Barbie goes shopping?"
"Also $19.95."
"O.K., how about this, Barbie gets married?"
"Also $19.95."
"And this, Barbie plays tennis?"
"Also $19.95."
"What about this one. Barbie get a Bat Mitzvah?"
"Also $19.95."
I eyed the last one and hoping for a lower price asked, "How much is this, Barbie gets a divorce?"
"Ah, dots $199.95!"
"Wow, why so much?"
"Vell, dot comes vit Ken's car, Ken's wardrobe, Ken's house, und, Ken's benk account!"