wow...playing vinyl again on major market radio st


I recently visited a mid-market midwestern
city and was surprised that their largest classic rock station plays vinyl...is this a trend or merely a phase to piggy back the LP revival?
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I sometimes hear stations would play a beat-up vinyl. Find descent download or ceedee for my Uncle's sake!
Vinyl is played on WXPN 88.7 FM here in PA.They have or had this show of a huge room of tape,vinyl and CD's they played.Incredible surface noise and scratches on some rare records.Then they had a facebook contest where you send in a pic with you and your favorite vinyl LP.Great station.
Which leads me to my next question. What format do they ordinarily play at Classic Rock stations such as the (very good sounding) 100.3 FM in Washington, DC?