I think we should focus less on cost issues and make it a public works infrastructure project. This would mean high launch volumes and lots of mass-produced parts for launchers and space structures made by american factories instead of a few lovingly and expensively handcrafted parts from one or two favorited stinkwerks. Cheap or expensive, it really isn't important as long as the money is circulating through the wider economy.

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"What you think you thought you saw you did not see." Agent J, MiB - Manhatten Bureau