I live in Boston, MA where Starbucks and the rest of my favorite coffee shops offer an 8oz brewed coffee with no frills for $1.45. By far, the most expensive drink you could get at Starbucks would probably be a Venti White Mocha with some extra espresso (each shot adds $0.50.) Just a Venti White Mocha without extra shots would be well over $5 and so with, it could go as high as $8- or $9-ish, depending of the size and frills you want.
If that's the price, here then is my opinion. I need my daily dose of caffeine before I start my whole day office work to boost me up before I became a coffee addict who is willing to spend much on coffee. I mean, it's a necessity and even if it's bad that I take my Starbucks frappé as a sub for breakfast, it's worth the price, which is not really pricey, if you can afford it.