A fair point. However, those are all relatively fixed. A car dealer needs to buy a new car to sell one. They don't necessarily have to invest more in the items you mentioned to grow their revenues.
TLDR: businesses that scale vs those that dont : )
TLDR: businesses that scale vs those that dont : )
In any case, roel_v is pointing out that revenue isn't a very good metric without more data to evaluate it.
I'd like you to provide an example of a business that doesn't scale :-)
Agree that more data helps. For a headline I'd rather see revenue than margin or profit, as those are more subjective (or net revenue, if you're selling goods).
Unscalable business? Obviously a subjective take but, to me, that means anything where you're charging by the hour (e.g. consulting).