13. The TV show Extreme Couponing features coupon users who go to extraordinary measures to save money on their weekly purchases. The show follows these coupon users throughout the week as they assemble coupons and scout out stores to see which have the best deals, and then follows them to the store for the big buy. Do extreme couponers have extremely elastic demand or extremely inelastic demand?

Explain. (Note: If you are unfamiliar with the show, you can Google it and watch a segment.) (p. 18)