Beauty of the MCU
Long form story telling
Interweaving, connected plots
MCU is predicated on fan service. All these stories have already been written and are available to anyone who wants to. The MCU plays primarily on expectations. It's not about what happens, it's more about when it happens.
The real-time formation and evolution of the MCU with regard to the business aspect
Week-to-week fandom, crazy that a film franchise is able to generate week to week discussion and viewership
The majority of the movies are average at best. But the whole is greater than the sum of the parts. Each film is an advertisement for the next one.