[marcosdumay]

There are quite a few important numbers here.

Weight/thrust is important; thrust/area is important; ISP is important; thrust/dollar is important...

[lamontcg]

> thrust/dollar is important.

something more like that is probably the most important variable.

all the rest of them impress space nerds, the ones ending in per-dollar are the ones that impress accountants and finance people.

[marcosdumay]

Accountants and finance people are not the almighty rulers of projects.

If you can not get enough thrust under your rocket sectional area, your capsule will simply not leave the ground and your astronauts won't make it to the Moon, independently on the accountants opinion on the matter.

All of those things are important.