I think the ending was fitting for a show that really made you enjoy thinking about it. We've been discussing and interpreting LOST for 6 years and obviously we enjoy it to some degree or we would have given up on the show. Putting on an ending that clearly tied up all of the questions and showed exactly how things ended would be out of line with the show that we've all watched and enjoyed for all these years. People get to do what we're doing and discuss, interpret, argue their theories just like we've done through the entire show.For what I think about the finale I think we need to break it up into a few parts:Island Ending - I liked the build up and anticipation when Jack agreed to go to the light with Locke and told him in advance that he'd kill him "That's a surprise". Turning off the island's source of "magic" long enough to kill one of its creations "smoke monster" seems like a great way to resolve the how do you kill the smoke monster problem. Have a bit of an issue with them repelling down the well with no ill effects that turned MIB into Smokey but guess they made up the source so they can also make up its properties. Maybe the thought was no effect on Jack as protector or Desmond as "special?". I think Jack giving his life to save / fix the island / world / his friends was a fitting end especially with him returning to the original bamboo field and the last shot being his eye closing.But, it didn't really end did it? The island and the mythology live on with Hurley and Ben running the show. What happens on the island? What forces come in the future? (I like the suggestions of Walt and Aaron above) Desmond didn't catch the plane, how does he get home to Penny and little Charlie? What happens to the survivors when they get "home"? Do Kate and Sawyer finally get together? Claire's reunion with Aaron, etc. Leaves alot to the imagination and each viewer can make their own ending. (And I'm sure there will be some that try to tell these stories in the future even if its just fan fiction. Sideways / Alt Timeline - Right or wrong I think this was their way to give people the happy endings and character resoultions they wanted. Would it have been better to use this time in the final season to answer all of the possible questions instead of focusing on the characters and their relationships and emotions? Maybe, but all along (maybe it has faded in the last couple seasons) this has been a show about the characters with the mysteries as the background, not the other way around. If you have to choose one or the other, I think I'd go with the way they ended it as the character resolutions were really worth it in some cases. (My living room got pretty dusty when Charlie, Claire, and Aaron were all reunited)Answers - Now you could say, well then why not extend the show for another season to answer all of the questions and plotlines that they've brought up in the show? Well, how much do you need to know? There are some major questions I keep hearing but then also some minor squabbles that I wonder why people even care. I guess it comes down to the fact that once the magician reveals the trick, the magic loses its effect. Maybe the producers decided to err on the side of not answering enough over answering too much. Hell, maybe they just threw their hands up at one point and said "I have no idea how to resolve all this, screw it", but I'm ok with it as I've loved the show and think the way it was left struck the right balance of staying true to their story, giving people emotional closure, leaving some mystery, and letting your draw your own conclusions on the true nature of the island.