As a developer, the costs towards developing ghost seems high: 3 employees and $70,907.89 on subcontracting. Is my mindset wrong? I like ghost.org, it's clean

As a developer, the costs towards developing ghost seems high: 3 employees and $70,907.89 on subcontracting. Is my mindset wrong? I like ghost.org, it's clean and fast. OTOH it's not complicated or revolutionary, is it? I followed ghost for a while and was not impressed by the pace of development. New features took ages. Anyone know why the development is so (seemingly) slow? Bureaucracy? Slow decision making?