Star Citizen is a bit like an Instagram account: what you see looks amazing but the reality is hollow. As it stands, at major milestone alpha 3.0, Star Citizen does not convince as a game.
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Most shops don't have any interactive stock and so, like the hubs and the universe around them, they contribute to the feeling of touring a giant Hollywood set: all front and no substance.
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Simply put, Star Citizen has a frame-rate issue so bad it ruins everything. There are glimpses of 60 frames per second when servers are fresh and populations low, but as soon as people join, the frame-rate plummets again. What it means is that you're unlikely to ever see more than 20 frames per second regardless of graphics settings, regardless of PC (within reason), and usually you'll hover around 15 frames per second.