in short, in my opinion it is technology.
Explanation:
Old School: Ask some trusted friends what to do in your holidays. Probably you book an apartment at the same trusted renter at your favorite place. You spend your time there. To interrupt your vacation, somebody needs to find out the number of the hotel/apartment where you rent. You come home relaxed
Today: You book your trip based on recommendations on travel portals. Every part of your travel is organised. Flight, transfer. You probably find your way to the hotel with Google Maps. In your hotel, you have wifi and probably you have a local sim card. You are not really far away from home. You can check your e-mails regularly and probably you end up chatting with a colleague about work. When you return home, you had probably also a nice time, but partly you worked and spent online time with friends.
Of course, today we have advantages to old school. Maybe you found a perfect trip in the internet and you would not have been able to detect it in the "old school world", but sometimes I miss "old school" a bit
