- Look at the cost of the item you are considering.
- Compare it to the alternatives that are cheaper.
- Decide if the item you are considering is X times more enjoyable.
On the other hand, we were considering going to visit my in-laws over Thanksgiving, but due to my new job and no vacation time, we'd have to fly out there instead of drive. The cost if we bought the tickets now for the 3 of us would be $700. Now compare that to camping for 7 weekends this summer instead. I think 2 weeks of camping would be more enjoyable than 3 days with family.