Menu-esque Thing

Having established that the current National Debt is of order ~$10^13, the distance to Mars is about 4x10^7mi, and the current reimbursement rate for driving is $0.4/mi, we estimate that we are currently 1.6x10^-6 National debts from Mars or

distance to Mars = 1.6 micro-National debts

By comparison, the interwebs have informed me that the Bush Mars Exploration program may end up costing as much as $150 billion or 1.5x10^-02 National debts.

We therefore determine that it's cheaper to drive to Mars.