If you use Adobe apps 16GB is a bare minimum. I have only this one browser tab open in Safari and Activity Monitor running and the system is using over 12GB of memory. Adobe services are running in the background. (It is also using up another 29GB for cached files; this Mac currently has 80GB of memory installed.) I suggest to go for 24GB on the base mini and 32GB on the Pro mini. That will leave you a bit of a cushion. You can't upgrade it later.