kalirion: And for all good Monkey Island lovers, I'd recommend the indie adventure game Jolly Rover. It's creators were definitely big fans.
Leroux: I think the problem with a lot of adventures is that their creators are not just fans but fanboys of classics like Monkey Island. Don't get me wrong, I enjoyed Jolly Rover, too, but it wasn't all that original. When people say "adventure games are dead", it doesn't necessarily mean that there aren't any adventure games anymore, just that the genre has hardly evolved since the 90's, and it's also due to all those parodies, hommages and same old jokes over and over again. Even the later sequels in the Monkey Island series itself suffered from that.
That being said, there are far worse offenders in this regard than Jolly Rover. It doesn't do anything new, but it's fun nevertheless.
I don´t think "adventure games are dead", to the contrary, as of late I think in some part (a big one) due to the indie breakout, there´ve been appearing good adventure games, take for example Gemini Rue, Resonance, Lost Horizon, Machinarium to name a few, and they are bringing the focus again to the classics like Monkey Island, Indiana Jones, etc.
Even when adventure games lost the focus, as the space simulators did (Descent Freespace :D) there´ve been always some great adventure games that got out, just like to remind us they were all but dead, like Syberia, The Longest Journey, The Broken Sword, etc. Like with all things they had a golden age, then a decadence and a resurgence.
Though I agree with you, when referring to pirate misadventures, all games that came after Monkey Island seem to borrow something from it, or, maybe it´s just that Monkey Island has all the ingredients (no, not rerring to a strand of hair, body fluid and a personal clothing ;P ) that make a classic pirate story good, at least to me, that is. So I don´t know how much can they deviate from those before stop being a nice pirate story, but, I´d like the same as you to see where it can lead to : )