People haven't shown much interest in the bands I consider a little newer and a little hipper. The Apples in Stereo, Beck, the Decemberists, and Bon Iver have all been met with indifference. I haven't even tried playing Explosions in the Sky.
The two exceptions are M. Ward and Iron & Wine. My coworkers love these guys. As well they should.
(If you've never heard M. Ward, check out the video for his song "Chinese Translation.)