WCS Spectrum is completely worthless
"The uplink and downlink portions of the WCS spectrum band are separated by the DARS spectrum used for Sirius satellite radio. As a result, the WCS spectrum is subject to power limits and guard band requirements designed to protect these delicate satellite signals. Unfortunately, this renders the spectrum useless for mobility. Thus, outside of a few limited wireless broadband tests, the WCS spectrum remains as un-utilized today as it was when it was first licensed."
http://wirelessspectrumreview.com/wireless-spectrum-bands/wcs/
ATT had been trying to sell theres as well but doesn't appear to have any commercial value.