Which one should I buy: 2nd gen iTouch or 3rd gen iTouch with a crack?

[kiwibunnie]

Let's say they are both 8 gb and slightly scratched. (I'm buying from a pawn shop.) They have the 3rd gen there right now, but not the 2nd gen. I could wait for a 2nd gen to come in whenever they get one. The crack on the 3rd gen is about an inch on the top left corner. It doesn't affect anything, but the crack just bothers me. They said that the original price for the 3rd gen is $150, but it is $130 due to the crack, the same price as a 2nd gen. Which one would you buy?