audiophiles?

How good a stereo system do you have to have before you can hear the difference between an LP and a CD? You know, how people say that CDs lack the warmth of an analog recording? I know I don't have a great turntable, but it doesn't sound nearly as good as the CD player. The CD has a deeper, more vibrant sound. Or maybe I just have no idea what's missing, and one day I'll figure it out and all CDs will sound crappy ever aver after.