...you know, buy a certain number of calls without bothering to attend to fine-print details.

But if it is in fact a dirty trick, it's genuinely diabolical. I can see some amoral entrepeneur building this product line right now.

Accented ethnic calls, price per thousand:

Jim Crow-----------$35.00
Brooklyn Jew-------$45.00
Asian Indian-------$19.50
Generic Wog--------$17.50
Mexican------------$31.00

It's the American way!