Hamlet Cray or Nay?

One of the most debated topics in the story of Hamlet is whether or not Hamlet acts crazy or is actually insane. This debate begins at first true occurrence of the story: the spotting of the ghost. Some people immediately believe that the ghost is only a figment of his imagination and does not exist. It can be countered that because Horatio, Bernardo, and Marcellus saw the ghost as well it must be true. Later on in the story when Hamlet is with Queen Gertrude in the bedroom a counter argument is formed. In this scene, Hamlet is in the middle of talking to his mother when a ghost appears. At the sight of the ghost Queen Gertrude looks at Hamlet saying,"Alas, he's mad!" (Act 3, Scene 4) because she cannot see the ghost that Hamlet sees. This could obviously support the initial idea of the ghost being nothing but imaginary. Reading ahead (Lol), Hamlet clearly admits to his mother that "essentially am not in madness but mad in craft" (Act 3, Scene 4). It is easy to believe that even at this point Hamlet could still be lying. The only thing that supports the validity of  his statement is the fact that he had just compassionately taken instruction from his father to be sweet towards his mother and talk to her. As of this point I truly believe that Hamlet's "madness" is all a facade. On the other side of it, i don't trust Queen Gertrude to keep is secret..idk. I also look forward to seeing how this may or may not affect or reveal something about Hamlets true feelings toward Ophelia...

Side not: I really am enjoying the 1996 version of Hamlet. Although I did not really imagine the male characters in the Hamlet family to be blonde, i really could imagine the humorous and insane actions of Hamlet. As for the 2009 BBC version, its too modern for me, but it did capture the awkward interpretation of Hamlet having a sexual attraction to his mother well (gros!).