You plan to visit three or more distant cities (e.g., Tokyo → Kyoto → Hiroshima → Kanazawa → Tokyo) in a short window.
You want the Narita Express or Haruka (Osaka/Kyoto) included in your travel days. When to Skip It (Buy Single Tickets Instead) when to buy jr pass
To help you figure out if it's worth it for your trip, tell me: What is your ? Which other cities are on your "must-see" list? How many total days will you be traveling? You plan to visit three or more distant cities (e