When I watch Avengers it just seems like 2 hour long toy commercial
That's precisely what they are. Dat merchandise dollar.
I still enjoy the movies for the spectacle, I also really like that they don't take themselves too seriously like Transformers etc. They can have the jokes and loud personalities etc. Considering how hyped I was for Avengers 1, I actually forgot A2 was even coming out so soon and I'm not particularly geared up to see it. I'll still go and enjoy it, but it's not the 'event' it used to be.
I was much more excited for GotG because it was a different realm of Marvel, going into cosmic territory with different and crazy characters. I'd LOVE to see Dr Strange do something similar, going into fantasy Marvel with lots of magic and crazy ass monsters and demons like Mephisto, Blackheart, Shuma Gorath etc.