Lowfareair - Where did your figure of $15,000 come from? It seems INCREDIBLE high! If you look Here
the direct operating cost per hour is $1131.00 per hour. I guess that flight is 3-4 hours, so I am about $10,000 short (exlcuding operating costs).
The cost of it flying in to pick the customer is the case with any charter, not just this idea. I am not sure how they do it.
Co/BA - I am not sure about that one. But considering it is a charter flight (and no outside cargo) you might get more. This is a something that has to be solved.