It's been a long time since the whole MCU started. A majority of the movies I've loved, some I loathed, and some I just slogged through to get to the end scene to make the next Avengers puzzle piece reveal itself before the next Phase landed.
And this, my friends, is where I get off the merry-go-round. Endgame is probably the last MCU film I will watch. Not because I dislike the MCU, not because I'm protesting the killing off of "insert favorite character here", either via snappening or prior plot points. But simply because I don't have the time to pursue 4-5 films a year for a continuing storyline anymore. There's some franchises I'll make an exception for. (GOTG Vol 3 has me excited, I'll admit. And I'd give Black Panther II a shot, although if he's the Earth equivalent of Thor, BPII will probably wind up just as memorable as Thor: The Dark World... you remember that one, right?) Especially with the Phase IV, V and VI talk.
The first trilogy of Star Wars was beloved, if not as successful as the later tentpoles made by Lucasfilm & Disney, because everyone thought The Return of the Jedi was a satisfying end. And I think it was, really, if Episodes 1-3 and 7-etc. would never come to pass, Star Wars would be even more special to me that it is now. Even the best stories told leave some questions at the end (like that large question mark at the end of Kill Bill Vol. 2, which will never become a trilogy at this point in Tarantino's career). British Television runs shows in series, not seasons, and when a story ends, they end it naturally in most cases. Not when the money runs out. This is counter to how business works these days, but all the same...
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While I'm a Marvel fan over DC, this is where the MCU stops for me. Not for any complaint other than it has gone on for too long. At the least I need a break.
I'll see this movie. I'll laugh at points, I'll probably cry. I'm sure I'll enjoy it. But after Avengers: Endgame, I'm going to join the theater goers that all the fans rolls their eyes at. I'll join the people who leave at the first sign of the credits appearing for every Marvel flick I catch, not bothering to wait for the hidden scenes. Because I've got other things to do.