You are forgetting to include the cost to manufacture and ship 500 TH so it will be nowhere near 0.0625 per share.
Friedcat for sure should exclude shipping cost. No other seller is including them. And its psychological far better to exclude them since comparing miners everyone takes the buying price. Shipping cost is mostly forgotten and paid later without complaint. So it was never a good idea to include it in the miner price.
Does anyone have friedcats personal details? I would like to sue him.
Im interested to hear what you will charge him for.