"Your glasses are one hundred dollars." (5)
"And the weather is one hundred dollars..." (30)
"That sounds like one hundred dollars. Over." (71)
"No bad dreams. Over. One hundred dollars. Over." (104)
"My ears aren't a hundred dollars," she said. (106)
"I know, because there was a standing ovation, which made me feel like one hundred dollars."(143)
"I took out two one-hundred-dollar bills and put them in a different envelope, which I gave to the ghost."(176)
The use of the expression "One hundred dollars" helps to display the frugality of the Schell family, which adds another dimension to their lives. Usually the expression would be, "A million bucks," But a hundred dollars is a sufficient amount to describe something luxurious for them.
"One hundred dollars" is also used in the book as an expression for saying "that's great" or "awesome".