My wife and I are planning to visit Prague and the Czech Republic in the fall. We plan to book an airport taxi online; we have a timely appointment (a bus in town) to catch. Before taking the taxi, we'd like to make our way from Terminal 1 to Terminal 2 to buy and activate a SIM card at the Vodafone kiosk. Can we easily/quickly walk to Terminal 2 from Terminal 1, outside the security area (after clearing customs)?
Separate question: It's also possible to procure a SIM for the O2 network ahead of time, on eBay, for around $20, but we have to trust our luck that we can activate it once we get to Prague. Any opinions on this option vs. buying the SIM at the airport? Thanks!