How Far Would You Go to Save Some Money?

Literally, how far would you go? My husband and I often go to a grocery store that's about 60 miles away in order to get a good deal on groceries and stock up. I sense that we are saving a lot of money, but I never bothered to do the calculations.

How much would we need to save to make it worthwhile?

If I assume that it costs us $.50/mile (I'm using this as a proxy since I am reimbursed $.485/mile for work related mileage), I would need to save $60 (60 miles *2 *$.50) in order to make the trip worthwhile financially. Of course, there are also the non-financial benefits of going.

1. Shopping at that faraway store allows us to spend time with some of our dear friends.
2. Shopping at this faraway store along with shopping at Costco allows me to shop less often since I have most of the food I need for a month or more

Ok now I think I'm looking for justifications for taking the trip out there! When we go, we do spend close to $200 or more. Next time we go, I'll try to come up with an estimate for how much we are saving to see if I can justify our trips based on financial reasons alone.