Yeah, it sucks. I don't mean to sound philosophical, but things aren't beautiful because they last. Adventure Time ended last year, and Regular Show the year before that, and I was a little upset. Although I found grace in their endings, which is an aspect a lot of people don't appreciate when a TV show ends its run. There'll always be other shows keep in mind. The next decade of film, cinema, games, etc may not be as good as the 2010's, but who knows, it may be just as great.