The price of NSTM membership card is NT$360 per person. With the NSTM card, the visitor may have an unlimited access of permanent exhibition for 1 year and the discounted price (NT$70) of the 3D movie. (one ticket with one card).
 

In accordance with Article 25 of the Senior Citizens Welfare Act, the ticket of 3D movie on holidays and weekends for the seniors(65+) is adjusted to NT$75.

https://www.nstm.gov.tw/English/InformationForVisitorsEng/VisitorInformationEng/PriceEng.htm