I still buy both new and used SACDs (but only the hybrid variety) and would hate to see them go away. However, I am just as likely to buy new or used CDs labeled as K2HD, XRCD, or Ultra HD. I also continue to buy both new and used redbook CDs, but in the case of new redbook CDs, I now limit my buying strictly to those that have received good reviews (or word of mouth) for sonics.
