Yes, OK, if you travel to a country with Starbucks, you can walk 10 minutes (if you're in central London or other bigger cities) or 30-60 minutes to the nearest one. But we live in the smartphone age, I want to be able to use all my apps everywhere I go, the way I'm used to back home. What's the point of all those hyper local apps if you need an immobile wi-fi connection to access them.
So far I haven't found any starbucks that wouldn't have free wifi in London. Well, apart from the small wooden one at the Liverpool street station enterance (but that is to be expected sincie it's a, well, a wooden box:)
