I'm new to thinking about what goes on with the mac mini so forgive my ignorance, but is apple's update cycle with it similar to the mac pro? Like they don't update it as much as their MacBooks and stuff. It's on like a bi-yearly basis?
Mac Mini updates have been as frequent as a couple or three times a year, to as infrequent as a couple of years or so apart. Latterly it has been more the latter.
Of course, it's unclear just how advantageous that is in real life...
With soldered RAM, 16G would always be a good idea - at least, if one intends to hold onto the system for as long as (economically and ergonomically) possible...