Who generates 80K of sales from a fair booth?? Its a good lesson, alright. A lesson that things have to change.
Your costs are not dependent upon the purity of your motives, the worthiness of your cause, nor your inability to generate revenue.
The cost exists above this.
From my perspective, most business failures are caused by the entrepreneur's failure to estimate what revenue will be required to make the business a success.
The example we are considering emphatically demonstrates this point.
The young blow-gun manufacturer should take the lesson to heart.