This question can be answered from the aspects of the convenience of travel, cost, quality of experience, and technological progress. It is possible to compare past and present ways of traveling, discuss the unique charm of past travel or the convenience of modern travel.

這個問題可以從旅行的便利性、成本、體驗品質和技術進步等方面來回答。可以比較過去和現在的旅行方式，討論過去旅行的獨特魅力或現代旅行的便捷性。