The three most common $reasons I see are: 1) They believe it will help them attract engineering talent, assuming many want to work in a micro services architect

The three most common $reasons I see are: 1) They believe it will help them attract engineering talent, assuming many want to work in a micro services architecture. 2) They believe it will impress investors that they use micro services or be be a red flag to tell investors that their architecture is a monolith. 3) They believe their company will be HUGE one day and that it is therefore wise to prepare for scale now. But as you can see in the comments in this thread. The coolness of micro services seems to be slowly fading. Feels a bit like the state of noSQL in 2014.