Folks are finally coming around to realize CD is as it was promised back in 1982, perfect sound, forever perfect. Until multi-channel mixes take off; and, so far, that's not happening, CD appears to be the defacto medium for quality sound reproduction. It's versatile too. You can buy, sell, trade, and copy CD's for personal use; plus, uou can play on most any kind of disc based media player.
Since CD, we've been propositioned by SACD and DSD but these mediums for most can not be discerned to sound better than CD so it appears CD still has some future. It's biggest threat is iTunes and Amazon music downloads which offer great convenience and in some cases don't require a purchase beyond a single tune from an album. If owning, selling or trading is not important this sort of distribution of music might finally crush the CD but I hope not.