Do they? How long have the same ones been around 5 or 10 years yet?

On other their products likely have such margin it might be possible with enough sales. The components aren't too expensive, there isn't massive number of labour and equipment isn't that big of investment either likely...

Isn't it like a Starbucks? Overpay for some juice and sit in the cafe and use their internet for a bit?

Reasonable deal for a lot of people, given that you're only overpaying on a thing that costs a tenner.

I keep hearing this, but I don‘t really think fresh orange juice, for instance, is as bad as sth like sunny delight or soda. I do not have a source though.