A better comparison is how much it has cost SpaceX to get to where they are (and still at least 3 years left to go for their Mars mission) - $2.5B in equity funding + $10s of billions in revenue over the last 10 years.
out: "SPACEX DESIGNS, MANUFACTURES AND LAUNCHES ADVANCED ROCKETS AND SPACECRAFT"
in: "SpaceX: We put things in space so you won't have to"