Is Hamlet's quest for revenge justifiable? Why or why not?

Hamlet has every right to be angry. His uncle killed his father in order to be king. It sounds terrible; and to make things worse, he married Hamlet's mother. Would a beloved uncle stoop so low to get what he wanted? Hamlet has seen his father's ghost, and told him that his uncle is to blame for his death. Hamlet's uncle has basically taken everything away from him. His throne, his mother, his father, even now their relationship has dwindled to nothing but cold shoulders. I don't think I could let my uncle live after taking so much from me. What Hamlet's uncle did was not a small greedy act, it was a huge selfish act, and very personal. With these thoughts set in mind, I feel that Hamlet's quest for revenge is justifiable.