I will be in Dublin for a minimum of 6 months, but up to a year. I will decide later if I want to stay longer or not. I'll be departing Minneapolis in June with tentative plans to return in December. Should I purchase a one-way ticket and watch for a winter deal to fly home? Are there winter deals? Or should I purchase round-trip (around $950 right now) with insurance to switch the flight later? Is that insurance possible and is it expensive?