757-300 and 787-8 have similar seat counts, but the latter is overkill in terms of range and somewhere in the ballpark of double the cost of an a321. Not to men

757-300 and 787-8 have similar seat counts, but the latter is overkill in terms of range and somewhere in the ballpark of double the cost of an a321. Not to mention that pilots that are type certified for larger twin-aisle aircraft tend to be more senior and expensive than those that are certified for midrange single aisle aircraft.