"Hmm, I thought it was standard practice to run armoured for all outdoor runs. The price difference has never been much for the runs we do."
Maybe for campus type work, where the runs are relatively short - but for telco use, where the distances can be 1000s of km, the price of armored cable would be prohibitive, so it's only used where necessary.
You can actually buy fibre cable with rodent repellent sheathing, but that adds to the cost per metre as well, so it's typically only used where there is an identified rodent problem.
Biting the hand that feeds IT
