Identify Any Fallacies in the Following Passage Either by Naming

Short Answer

Identify any fallacies in the following passage either by naming them or, where they seem not to conform to any of the patterns described in the text, by giving a brief explanation of why the fallacious reasoning is irrelevant to the point at issue.
He: They're nice speakers, but we can't really afford them.
She: Why in heaven not?
He: If we buy them, next thing you know we'll want to buy a new receiver to go with them, then a CD player, then a new tape deck, and on and on. We can't afford all that stuff.