I don't care for managing ports / sockets, migrating configurations, doing the creating database (careful not to use the not-really-utf-8 charset), user and granting privileges dance. Overkill for my use case.
Backups will also be easier: a simple rsync call will do, no need to call the specific mysql backup command anymore (of course it's automated but that's one less thing that can fail, less moving parts)
I bet we are many people in this case.