So, easy commute: 2 hour flight, one flight every hour, need 2 options for commute policy, get on first flight home every time, every trip commutable, 4 trips per month:
Get to the home airport 5 hours before check-in (get there 1 hour before check-in, 2 hour flight, one extra flight for policy, get to airport one hour before departure).
Go home, land 3 hours after check-out (1 hour wait, 2 hour flight).
So, minimum 100 hours pay per year lost (8 hours per trip, 4 per month, one month off for vacation makes 350 hours, 3.5 hour rig).
At $250/hr that is already $25K/yr, just for the extra time, with the easiest commute imaginable.
This is before un-commutable trips, and lost premium, because not in base, and don't even start on commuting to reserve.

Also: people complaining about having to pay $50/night for a hotel.....
(any night in a hotel is at least $300 in lost wages at 2nd year pay).