My "back of the envelope" calculations for the cost are:

Fixed Costs:
        Mold Design Time        5h              $0
        Mold Milling Time       3h              $75

Variable Costs: (per production run)
        Mold setup                      1h              $10

Variable Costs: (per case)
        Plastic Pellets         (1/10)h $3

So assuming a CAD file for the NEO case were to magically fall out of  
the sky, perhaps as part of a program to seed a third party ecosystem  
(*hint*hint* Sean, are you going to be in the bay area soon?  
*wink*wink*) The cost per case for a production run of 10 and 100  
identical cases would be:

10 cases: 9h, $115
100 cases: 18h, $385