Lysistrata - Comedy

I really enjoyed thsi play because of its comedic value (and underlying themes of course). There were so many quotes from this book containg sexual innuendos that made the immaturity in all of us leap out a bit. Most of the references in this play were puns, suggestive puns, I often found myself laughing when others weren't (when reading in class), either because I had caught a pun and nobody else did, or because my mind was in the gutter and I thought something to be a pun when in reality it wasn't meant to be (slightly embarassing, it's almost like a "thats what she said joke," addicting in that whenever someone makes this type of joke, everything said during the next 10 minutes becomes a sexual innuendo). But on a more serious note, why did Arostophanes make Lysistrata a comedy rather than something more serious (talking about how bad the war was or something)? I'm think I might know the answer to my own question, I think Aristohpanes made this into a comedy in order to make the play memorable. By making it funny and applicable to everyday life, the play instantly becomes more memorable because its easy to reference and easy to understand. Thank You Aristophanes.