Running is one of those hobbies you can do almost anywhere. I can walk out my front door and run, if I'm on vacation, I can walk out of my hotel room and run, and it's not weather or time dependent. Skiers need snow, scuba divers usually need to travel to exotic locales, golfers can only play on a course or at a driving range. In it's simplest form, all you need are shoes, shirt, and shorts. No bulky equipment to schlep.
Whenever I run away from home, I look forward to uploading the map of my run from my Garmin. I look at as a memento from my travels. It sure beats any t-shirt, snow globe, or other item that I would otherwise buy in a gift shop.