Should I just buy a local SIM at Taoyuan airport instead?

Buying a local SIM at Taoyuan International Airport (TPE) requires passport registration, payment in Taiwanese dollars (NTD) cash for some operators, and typically takes 15 to 30 minutes after a long flight. Critically, the airport SIM kiosks at Taoyuan are closed from midnight to 4:30 AM, so red-eye and late-night arrivals can't get a local SIM until later that day. The ETravelSim Taiwan eSIM installs at home before you fly, requires no NTD cash or passport handover, and connects the moment your plane lands at any time of day or night.