What I meant was, say I wanted to build an internet radio using a pi for myself does core deliver worthwhile advantages over normal ubuntu? I think I would stick with normal ubuntu for ease of use.
On the other hand, if I was an internet radio manufacturer, surely I would build my own images rather than using the standard core images.
I get the idea behind snaps and core, I just don't get who the images are aimed at. Apart from testing snaps (limited number of users for this) I don't get the point. Maybe Ubuntu have come to the same conclusion, which is why they are producing 'normal' server images for the pi family now.