That is a VERY FUNDAMENTAL QUESTION. THANK you for asking it
.
Most of us buy TIW due to timed, repeated trips. With CARE - you can get three trips out of one card. Or more.
Rule #1 - NEVER buy a TIW in the TAIL END of a month.
Rule #2 - DO buy a TIW about the 3rd day of the month PRIOR to the month you plan to visit.
Those two rules will allow you to extend TIW to three trips, assuming you visit twice per year, generally in the same months. That pattern is VERY common with DVC folks, and AP folks.
Example: You visit twice per year, April and November.....
Buy TIW MARCH 3, or OCT 3. Card will be valid through APRIL NEXT YEAR, or NOVEMBER NEXT YEAR. With timed visits, your cost will be $50 per trip.
For reference: TIW is MORE than willing to TELL you all of this. Hit their website at:
http://tablesinwonderland.com/
They are VERY good at explaining the timing of a TIW purchase to fit YOUR needs.