I originally was very disappointed with the movie because I was told that it was a comedy superhero movie (I was thinking Deadpool style). Six months later I rewatched it knowing that it wasn't actually as much into the comedy but more of a movie with some decent jokes (a la The Avengers), and absolutely loved it.

I think part of it is just the 80s kid in me hearing the music and Chris Pratt being pretty much exactly what I would imagine myself acting if I were abducted by aliens as a kid, the ultimate 80s kid fantasy, and the style of the music syncing up with the visuals so well made it a very fun movie. A lot of blockbuster movies take themselves too seriously in today's world, and this blockbuster movie just decided to be blockbuster quality and fun at the same time. The only high budget movies like that recently that I can think of like that would be 21/22 Jump Street or Kingsman, but those even tend to be a bit too serious at times.

Pixar is a great contender in the fun and stylish movies front as well, I'm not saying they don't exist, but superhero movies haven't really been in that genre until Guardians of the Galaxy (The Incredibles excepted, also Pixar). Which is strange, because comic books should be fun.