The Starbucks (and all food service at the airport except Leopold's) is run by HMS Hosts and while some of their employees do a wonderful job, they seem to need more employees who are motivated to do their jobs well. There's one barista in particular at the pre-TSA location most mornings who does a really great job though. Hope she's there on your next visit.
The real question is, why would anyone pay that much for a cup of coffee?
Because it's in a grocery store is my best guess.
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