A falling ticket price can look like a clear bargain. It is not always one.

Fox News reports that resale tickets for Sunday's Titans-Giants game at MetLife Stadium have fallen as low as $14 while a major nor'easter approaches the region. The report on falling Titans-Giants ticket prices offers a useful example of a common household decision: whether a low purchase price makes an uncertain outing worth taking.

The answer depends on more than the ticket. A family should consider the whole trip, including transportation, parking, food, clothing, time, and the difficulty of getting home. Weather adds another layer of uncertainty. A cheap seat does not make poor travel conditions easier to manage.

Start with the full cost

The advertised ticket price is the first number, not the final one. Before buying, place every likely expense on one page.

Include the ticket price after fees. Add the cost of driving, tolls, parking, public transportation, and meals. If the forecast calls for cold rain or strong wind, include any clothing or supplies that would have to be purchased for the day.

Some costs are harder to put into dollars. A long return trip, an early departure from home, or the need to arrange child care may matter more than the seat price. These burdens should not be ignored merely because they do not appear at checkout.

This calculation is sometimes called the total cost of ownership. The phrase is often used for machinery or vehicles, but the idea works for ordinary household spending. The price of getting something is not always the price of using it.

Decide what would keep you home

A weather forecast can change. That makes it useful to choose a household rule before purchasing.

The rule might concern road conditions, transit service, wind, flooding, or the health and mobility of someone in the group. It should be specific enough that the decision does not have to be argued again on Sunday morning.

Families should rely on official weather and transportation information when the time comes. A low ticket price is not evidence that travel will be safe. It only shows what buyers are presently willing to pay.

It also helps to identify who has the final say. One adult may be comfortable with a wet walk and a long wait. Another may be responsible for a young child or an older relative. The plan should fit the person with the least margin for discomfort, delay, or difficult footing.

Treat the ticket as money already spent

Once a ticket has been purchased, people may feel compelled to use it. Economists call this the sunk cost effect. Money already spent begins to control a later decision, even though spending it cannot be undone.

A better question is simple: If the ticket had been free, would we still make this trip under these conditions?

If the answer is no, the amount already paid should not change it. Losing $14, or a larger amount after fees, may be disappointing. It can still be less costly than forcing an outing that the household no longer wants to make.

Make the return plan before leaving

The trip home deserves as much attention as the trip to the stadium. Check how everyone will return if the group leaves early. Know whether a train, bus, parking lot, or pickup arrangement still works at that hour.

Keep phones charged and agree on a meeting place in case the group becomes separated. Bring only what the venue permits, and confirm those rules through the venue's own information before departing.

None of this means a discounted ticket is a bad purchase. A low price may open the door to an enjoyable day for someone who is prepared for the conditions and comfortable with the travel.

The useful habit is to separate cheap from affordable. Cheap describes the seat. Affordable describes the entire day, including the possibility that the wisest choice is not to go.