Then we take those 8 Mio costs to build this cable and divide it by 10. (10$ that a customer spends for internet or voip use per month) So we got $800k We divide this by 12 Months. So we need ~70k Customers to finance this in 1 year. But 1 year would be very very fast. So we give the company 5 years to be profitable -> 14000 Customers. It should be possible to get 14000 Customers in a City with Millions of inhabitants imo! If we have our own line we don't need to pay any rental fees or smth -> it's all profit!