Shakespeare wants us to learn, through the delay of Hamlet, that prince Hamlet is a completely irrational young man, who over analyzes many situations. He is considering all aspects of his current situation, and he wants to be sure that killing Claudius is the right thing to do. After the mousetrap, when Claudius runs out of the play, Hamlet believes he has proof that Claudius did in fact kill Old king Hamlet. When Horatio agrees with Hamlets view of the king’s reaction, the proof is overwhelming. “Hamlet: Oh good Horatio, I’ll take the ghost’s word for a thousand pound. Didst perceive? Horatio: Very well, my lord” (3.2.281). It is clear that Claudius killed Hamlets father. I believe that the reluctance Hamlet feels towards killing his uncle comes from an irrational internal struggle. Although he wants revenge for his father’s death, Hamlet does not take Claudius’ life because he doesn’t want Claudius to be admitted into heaven. When Hamlet is given the opportunity to kill, his uncle is on his knees praying, and begging for forgiveness. Hamlet states, “Now he is praying; And now I’ll do’t: and so he goes to heaven: And so im revenged…and, for that, send [this villain] To heaven” (3.3.74). I am under the impression that the way that Hamlet hesitates is completely irrational. After he has complete proof that his suspicions about the death of his father are true, there should be nothing stopping Hamlet from avenging his father. Besides; as stated in this article, King Claudius did not only take Hamlet’s father’s life, he also took Hamlet’s mother, and his right to the throne.  If Hamlet was a smarter man, he would have realized that he would not be given forgiveness for the crimes he committed, and he would never be admitted into heaven.  It is for these reasons that I believe Hamlet just needs to Kill Claudius already!

http://www.dsargentblog.us/the-design-and-danger-of-a-delay-part-2/