When we stayed in DC I used to sit at Starbucks a lot. It was the best place to prepare my lessons with comfortable couches, good music and no hassle from waiters etc.
The one thing I didn't get was the coffee. It wasn't that good (too burnt and acid for my taste), HUGE jugs, sometimes with all kinda creams toppings etc. and the price was ridiculous - I remember it was 3.5-4$ for a cappuccino(!)
Here in Israel the espresso bar culture is very strong with a strong preference to Italian style coffee. Prices are similar to Italy (around 1 Euro for an espresso, 2 euros for cappuccino). After all this, no one was really surprised that Starbucks Israel folded after a year or two. No one misses it here.