Two reasons. No.1, the free Wifi You know, in a cafe, they would probably use the free Wifi, the speed seems much faster, it is very easy to download something they like. For example, they might download a favorite movie, which only use 2 to 3mins, it is incredible. If they do this at home, 2 to 3 hours maybe. No2, the food and drinks. Grab a cup of coffee while eat some favorite snacks, all of these food and drinks can be found in a cafe, more importantly, the price usually seems reasonable as well.