Because they are basing their coffee chain on the Italian style cafes. If you compare them to your local coffee shop, I recommend you go there to get quality coffee, you will be paying more for coffee and bags of coffee which are mainly whole bean. I stopped go to Starbucks years ago the day I visited a local coffee shop. Best decision I made with my coffee choice.
Branding, top locations, staff, all that costs $$$ and... they just want to earn money as any other business. Should you buy from them if you are not at a railway station and have access to a good local roastery? I would choose the latter.