What is Walter's attitude towards money?

Walter's attitude towards money changes over the course of
Hansberry's work.  At the start of the play and from that point, Walter is driven by
money.  His anticipation of the life insurance check is one that reflects this.  It is
money that he believes is the secret to his happiness.  He equates his unhappiness and
his condition in life to be linked to money and the lack of it.  Money seems to be the
underlying force to Walter's life.  He is unable to see anything past or beyond it. 
When Lindner offers to buy Walter out from moving to Clybourne Park, it is a critical
moment because the audience has to wonder if Walter will acquiesce to the presence of
money.  When he ends up rejecting it and does the right thing for his family, it is a
moment when we see Walter acknowledge the role of money, but also place it in a context
where it is not the totalizing force that it had been for Walter for so
long.