I admit it: I'm addicted to Starbucks. I never used to be a big coffee drinker, and by traditional standards, I certainly still am not, but I still spend a good majority of my weekly food allowance at this place.
Why is this? First of all, the flavours of coffee they have is great. I can't drink straight-up coffee, so the fact that you could add pretty much any flavour syrup to your coffee at Starbucks, with a lot of sugar, varied amounts of expresso, add whip cream, frothed milk... and its delicious.
And the environment is good, too. Sure, it can get a little noisy. Sure, it can get a little busy. But I still like going there to study with a grande Caramel Macchiato (or a frappacino in the summer-time).
The prices are high, unfortunately. Look to spend about $4.00 on a "medium" gourmet coffee (I believe a medium is 16oz?).