Thinking about buying... is it worth $100?

Hi there, I'm new to this group nand don't know much about the value of Legos. I have been saving all waiting for my 2 adult boys give me the gift of a grandchild. Anyway, finally my dream is coming true and we were just talking about their legos. I saw this and thought about adding it to our collection. Is it worth $100? I saw a R2D2 piece in there (which they love the star wars sets we have). Thanking you in advance for your thoughts on it. If this isn't the best site for this question,...