Why I like to sit (and work) in coffeeshops

It sounds like the lazy spouse spending a lot of money browsing the internet and chatting with friends back home, but it"s not. I like to work in coffeshops for two reasons: Less distraction and cheap office space. The first seems to be confusing, but it is true. I do not get that much distracted as I get at home, when my dogs want to play with me, my neighbors want to chat or other tasks at home had to be done. In the coffeshop nobody ask me anything (not even the waiters, even if they sometimes should).
So how much i spend there? Since competition brought the price down from ridiculous expensive Joma (21.000 KIP large latte) to 10.000 Kip (Ban Tonmali Cake cafe), it is one dollar a day and free water. Also you have a desktop and free internet. So my spending is about 30 Dollar a month. If I make a coffee at home I am not saving that much. One litre milk is 28.000, that is for 6 cups of coffee, what means 5000 KIP plus coffee and gas.. I may save 3000 KIP at home. Not that much.