According to Cherry, it isn't just money that separates the Greasers form the Socs. What is one other reason that she gives?

From the text:

"No," Cherry said slowly when I said this. "It's not just money. Part of it is, but not all. You greasers have a different set of values. You're more emotional. We're sophisticated--cool to the point of not feeling anything. Nothing is real with us. You know, sometimes I'll catch myself talking to a girl-friend, and realize I don't mean half of what I'm saying. I don't really think a beer blast on the river bottom is super cool, but I'll rave about one to a girl-friend just to be saying something." She smiled at me. "I never told anyone that. I think you're the first person I've ever really gotten through to."