Budget Rent$-$a$-$Car and Aloha Airlines have devel$-$oped a $$fly$-$drive$$ program. Under their agreement, cus$-$tomers of Aloha receive a $$7$ first$-$day rental rate for car rentals $($the usual rate is $$14).$ Robert$$s Waikiki U$-$Drive has brought suit, challenging the agreement as a tying arrangement and unlawful. Is Robert$$s correct? $[$Robert$$s Waikiki U$-$Drive v Budget Rent$-$a$-$Car, $732$ F$\mathrm{.}2$d $1403(9$th Cir. $1984)]$