Using your numbers, and a cost of $30 mil for each launch, if you need 140 good rovers to do the job of 100 better rovers, wouldn't you have to add the cost of the extra launches and system support for each of the failed or expected to fail rover to the end cost?
I could buy 5 or 10 q's for the cost of my 'E' but they will never be able to do what my seg does. I may not fall each time I ride the 'q', but I will need to be prepared to each time. I would rather have one seg than 10 'q's
Karl Ian Sagal
Each road you travel should be just a bit better for having had you pass.
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